US20040172889A1 - Unitary overpressure vent panel structure - Google Patents

Unitary overpressure vent panel structure Download PDF

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Publication number
US20040172889A1
US20040172889A1 US10/378,771 US37877103A US2004172889A1 US 20040172889 A1 US20040172889 A1 US 20040172889A1 US 37877103 A US37877103 A US 37877103A US 2004172889 A1 US2004172889 A1 US 2004172889A1
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US
United States
Prior art keywords
vent panel
support member
panel
panel assembly
set forth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/378,771
Other languages
English (en)
Inventor
Tom Eijkelenberg
Guido Dom
Roger Bours
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fike Corp
Original Assignee
Fike Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fike Corp filed Critical Fike Corp
Priority to US10/378,771 priority Critical patent/US20040172889A1/en
Assigned to FIKE CORPORATION reassignment FIKE CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BOURS, ROGER, DORN, GUIDO, EIJKELENBERG, TOM
Assigned to FIKE CORPORATION reassignment FIKE CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BOURS, ROGER, DOM, GUIDO, EIJKELENBERG, TOM
Priority to SI200432059T priority patent/SI1608828T1/sl
Priority to PCT/US2004/005276 priority patent/WO2004079110A2/fr
Priority to ES04713433T priority patent/ES2422654T3/es
Priority to AU2004217494A priority patent/AU2004217494B2/en
Priority to KR1020057016342A priority patent/KR101059470B1/ko
Priority to CNB2004800059207A priority patent/CN100545404C/zh
Priority to JP2006508799A priority patent/JP4832288B2/ja
Priority to DK04713433.3T priority patent/DK1608828T3/da
Priority to BRPI0408080-7A priority patent/BRPI0408080B1/pt
Priority to CA002517470A priority patent/CA2517470C/fr
Priority to MXPA05009297A priority patent/MXPA05009297A/es
Priority to EP04713433.3A priority patent/EP1608828B1/fr
Assigned to FIKE CORPORATION reassignment FIKE CORPORATION CORRECTIVE ASSIGNMENT TO CORRECT THE TITLE, PREVIOUSLY RECORDED AT REEL 014241 FRAME 0726. Assignors: BOURS, ROGER, DOM, GUIDO, EIJKELENBERG, TOM
Publication of US20040172889A1 publication Critical patent/US20040172889A1/en
Priority to US11/150,805 priority patent/US7234278B2/en
Abandoned legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/22—Safety features
    • B65D90/32—Arrangements for preventing, or minimising the effect of, excessive or insufficient pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/22—Safety features
    • B65D90/32—Arrangements for preventing, or minimising the effect of, excessive or insufficient pressure
    • B65D90/36—Weakened parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/22—Safety features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/22—Safety features
    • B65D90/32—Arrangements for preventing, or minimising the effect of, excessive or insufficient pressure
    • B65D90/34—Venting means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/14—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member
    • F16K17/16—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/14—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member
    • F16K17/16—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs
    • F16K17/162—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs of the non reverse-buckling-type

Definitions

  • This invention relates to a unitary, one-piece, integrated, non-fragmenting overpressure vent panel assembly that may be installed in covering relationship to the pressure relief area of a combined zone to be protected from the buildup of uncontrolled overpressures, and to then be removed as a unit for replacement with a similar vent panel assembly after actuation thereof.
  • the vent panel assembly is especially useful for instantaneously venting dangerously high internal pressures which result from an explosion in a manner to preclude catastrophic buildup of pressures within a confined area that is normally exposed to relatively low operating pressures.
  • the vent panel assembly has utility for use in protecting equipment such as bag house dust collectors, cyclones, conveyors, bucket elevators, dryers, vacuum receivers, electrostatic precipitators, silos, storage bins, large pipes, and ducting.
  • Burst membranes or panels have been used for many years to provide protection against explosions producing unpredictable dangerously high internal pressures which not only would be destructive to the zone requiring protection, but also to surrounding equipment, processes and personnel.
  • the burst panels are fabricated to rupture at a predetermined overpressure in order to vent the protected zone and prevent the buildup of pressures therein which in the case of an explosion could completely destroy the structure defining the protected zone.
  • Examples of explosion vent devices that have been previously proposed include the vent panels and burst membranes illustrated and described in the assignee hereof U.S. Pat. Nos. 4,067,154, 4,662,126, 4,777,974, 4,821,909 and 6,070,365. Although these vent units have been found to be satisfactory for protection of a variety of dust collection applications where there is exposure to an unpredictable catastrophic explosive event, the prior vent panel devices have involved a multiplicity of parts which must be assembled in place over the vent opening of the confined zone to be protected, and to then be disassembled piece by piece upon venting of the burst panel of the explosion vent for replacement of the burst panel.
  • the operator of the dust collecting equipment has been responsible for providing suitable frame structure for receiving a burst panel with the supplier of the panel furnishing a burst membrane which complies with the dimensional specifications of the user's mounted in place frame structure.
  • the burst panel supplier it is not uncommon for the burst panel supplier to provide the user with dimensional specifications for fabrication of frame structure required to mount a burst panel of standard configuration and dimensions established by the supplier. The burst panel is then mounted in place on the structure to be protected using hardware and fasteners supplied by the user.
  • the actuated burst panel Upon actuation of a burst panel by an overpressure condition in the structure to be protected, the actuated burst panel had to be removed from the structure defining a confined zone part by part, usually involving a number of steps and disconnection of a series of fasteners such as bolts and the like. Replacement of the panel required the same number of operations and steps to refit another burst panel over the pressure relief opening in the dust collecting structure.
  • the unitary vent panel assembly includes a rigid, generally planar primary support member having a central pressure relief opening, a frangible vent panel carried by the primary support member in full closing relationship to the relief opening, a rigid, generally planar secondary support member overlying the vent panel and having a central relief aperture, and structure interconnecting the primary support member, the vent panel and the secondary support member to provide a rigid, integrated, one-piece overpressure vent panel assembly.
  • the frangible vent panel is provided with a line of weakness defining a non-fragmenting burst pattern of the panel when the panel is subjected to an overpressure of predetermined magnitude.
  • the structure interconnecting the primary support member, the vent panel and the secondary support member may take any one of a number of forms including for example, a series of spaced rivets extending through the support members and the vent panel and positioned around the perimeter of the relief opening and the primary support member and the aperture in the secondary support member.
  • the periphery of the panel may be laser welded to either the primary support member or the secondary support member or both.
  • an adhesive layer may be used to affix the panel to one or both of the support members.
  • a fluid tight seal should be provided between the panel and one or both of the support members in full surrounding relationship to the relief opening in the primary support member and the aperture in the secondary support member.
  • a sealant element preferably of cross-sectional tubular configuration and containing a gaseous fluid may be provided between the panel and at least one of the support members which extends around the full perimeter of the relief opening and the aperture in respective support members.
  • a planar spacer member in the form of an apertured plate is provided in association with the sealant element between the panel and a corresponding support member to prevent undue compression of the sealant element and thereby maintain the integrity of the seal over extended periods of time.
  • the spacer plate normally provided in surrounding relationship to a sealant element may be omitted.
  • the overall configuration of the unitary overpressure vent panel assembly hereof may be of quadrate overall shape, either rectangular or square, or may be of circular configuration.
  • the relief opening in the primary support member and the aperture in the secondary support member generally will be of a shape complemental with the overall shape of the assembly.
  • the panel may be fabricated of various materials and thicknesses depending on the burst pressure required for a specific use.
  • the panel is of a corrosion resistant material such as stainless steel or exotic alloys with the configuration of the score pattern and the depth of the score cooperating to assure opening of the panel to meet an overpressure specification.
  • the rigid, integrated, one-piece overpressure vent panel assembly of this invention has primary and advantageous utility for protecting confined areas from uncontrolled explosions within the interior of the area
  • the one-piece assembly may also be used for relatively low pressure applications in which it is desirable or necessary to vent an area whenever a predetermined overpressure condition less than that occurring where an explosion hazard exists.
  • one or more sharp knives or the like may be associated with the panel for effecting rupture thereof upon excursion of a relatively thin panel when a predetermined overpressure is applied to the vent.
  • a rigid, planar, spacer of predetermined thickness in surrounding relationship to the sealant element is torque independent thus preventing too high or too low torque pressures being applied to the vent panel during fabrication thereof as a result of overtightening or not applying sufficient tightening force to the mounting bolts of the vent panel assembly.
  • a sleeve may be provided around each of the bolts securing the unitary vent panel assembly to the supporting structure of the confined area to prevent application of excessive force to a gasket between the secondary support member of the unitary vent panel assembly and the support frame on the bag house, vessel or other area structure to be protected.
  • Burst pressure controlling slots in the vent panel are preferably disposed in positions such that they are all located beneath the primary support member and communicate with the surrounding atmosphere and not the confines of the structure to be protected.
  • the vent panel is not subjected to higher temperatures that maybe present within the processing vessel or other apparatus thus precluding the vent panel from being adversely affected by elevated temperature applications.
  • the vent panel cannot be touched, damaged or deformed during handling or installation.
  • the vent panel may be provided with an outwardly projecting peripheral flange portion configured to meet with an integral, upstanding flange forming a part of the primary support member and surrounding the relief opening in the primary support member.
  • a series of elongated relief tabs may be provided between the flange of the vent panel and the flange of the primary support member for controlling bursting of the panel under a predetermined overpressure.
  • Each of the relief tabs has a pair of openings, with one of the openings being joined by pin means or the like to the flange of the primary support member while the other opening of the relief tab is connected to the flange of the vent panel.
  • the burst pressure of the panel can be controlled by varying the material of construction, the thickness, and the width of the relief tab between respective openings therein. Since the relief tabs separate and permit the vent panel to be released only when a tension force is applied to the tabs sufficient to permit rupture thereof, the vent panel is especially adapted for vacuum conditions in that release tabs are subjected to a separation force only when an overpressure occurs in a direction applying a tension force to the release tabs.
  • FIG. 1 is a side elevational, generally schematic representation of a particulates collector such as a conventional bag house and illustrating a unitary overpressure vent panel assembly of this invention mounted on one of the sidewalls of the bag house;
  • FIG. 2 is a fragmentary enlarged plan view of the unitary overpressure vent panel assembly as depicted in FIG. 1, with parts being broken away for clarity;
  • FIG. 3 is a perspective exploded view of the vent of the unitary overpressure vent panel assembly with the mount therefore forming a part of the bag house also being illustrated;
  • FIG. 4 is an enlarged, fragmentary, vertical cross sectional view taken along the line 4 - 4 of FIG. 2 and looking in the direction of the arrow;
  • FIG. 4A is a vertical cross-sectional view along the same line as FIG. 4 and illustrating the preferred tubular sealant element between the vent panel and the spacer plate;
  • FIG. 5 is an enlarged, fragmentary, vertical cross sectional view taken along the line 5 - 5 of FIG. 2 and looking in the direction of the arrows;
  • FIG. 6 is a plan view of an alternate embodiment of the overpressure vent panel assembly illustrating another score line configuration of the panel
  • FIG. 7 is a plan view of a further embodiment of the overpressure vent panel assembly and showing an alternate score line configuration
  • FIG. 8 is a plan view of another embodiment of the overpressure vent panel assembly and depicting a still further score line configuration
  • FIG. 9 is a plan view of a circular embodiment of the overpressure vent panel assembly.
  • FIG. 10 is an enlarged fragmentary end view of an alternate embodiment of the overpressure vent panel assembly in which the vent panel is of the multiple dome type with the dome section of the panel being shown in section for clarity.
  • FIG. 10A is a plan view of the overpressure vent panel assembly of FIG. 10.
  • the principal, although not exclusive, utility for the rigid, integrated, one-piece overpressure vent panel assembly hereof is in explosion protection applications.
  • the unitary overpressure vent panel assembly 10 as shown in the drawings is illustrated in operative position in a typical installation such as the upright side wall 14 of a particulates collector in the nature of a bag house 12 having an inlet 16 and an outlet 18 .
  • Bag house 12 conventionally is provided with a plurality of filters which for example may be loosely woven fabric bags mounted over respective outlet conduits which communicate with the interior of structure 12 .
  • unitary overpressure vent panel assembly 10 on the side wall 14 of bag house 12 is for illustrative purposes only and the assembly 10 may be positioned in any one of a number of strategically determined locations depending upon the type of confined zone to be protected from an explosion, the location of the structure on which the overpressure vent panel assembly 10 is to be mounted, and avoidance of the explosive force through the open vent undesirably impinging on adjacent equipment.
  • the preferred overpressure vent panel assembly 10 as illustrated in FIGS. 1-5 is of overall quadrate configuration. Accordingly, the side wall 14 of bag house 12 is provided with a rectangular opening 20 .
  • a vent panel mounting frame 22 is fixedly secured to side wall 14 in surrounding relationship to opening 20 through means such as a series of bolts 24 . It is to be understood in this respect that frame 22 may be welded to the side wall 14 or otherwise permanently secured to the wall structure.
  • Explosion vent panel assembly 10 includes a rigid, generally planar primary quadrate support member 26 having a central rectangular relief opening 28 .
  • Member 26 preferably is of stainless steel, carbon steel or exotic alloys, with an exemplary construction having a thickness approximately 0.08′′. It is to be observed from FIGS. 4 and 5 that primary support member 26 has an integral peripheral lip 29 that may for example be about 0.4′′ wide and which extends around the entire perimeter of the planar portion of member 26 for increasing the rigidity of the member 26 . The width of each side of support member 26 between the corresponding lip 29 and the inside edge of relief opening 28 may for example be about 1 3 ⁇ 4′′.
  • the overall area of relief opening 28 varies depending upon the application of overpressure vent panel assembly 10 and the area that must be vented in the event of an explosive event within the confines of a protected area such as the internal volume of bag house 12 .
  • a vent panel 30 is mounted against the interface 32 of primary support member 26 within the quadrate margin defined by lip 29 as shown for example in FIGS. 4 and 5.
  • Panel 30 may be of varying materials, including for example, stainless steel or other exotic alloys.
  • panel 30 is provided with a score line in one face thereof which in cooperation with the material from which panel 30 is fabricated and the thickness of that material determines the overpressure at which the panel will burst and relieve the pressure buildup within the confined area to be protected such as the interior of bag house 12 .
  • the score pattern 34 shown for exemplary purposes only includes an elongated central score line segment 38 connected to opposed V-shaped segments 40 and 42 at opposite ends of line segment 38 .
  • the depth of score pattern 34 is a function of the burst pressure at which the vent panel 10 must open and varies from job to job.
  • a rigid, generally planar secondary quadrate support member 44 is mounted within the confines of primary support member 26 adjacent the interface 32 thereof and preferably is of stainless steel, carbon steel or an exotic alloy also having a thickness of about 0.08′′ where the primary support member 26 is fabricated of material of that thickness.
  • Support member 44 has a central rectangular aperture 46 therein of dimensions approximately equal to the dimensions of relief opening 28 in primary support member 26 .
  • Each side of secondary support member 44 is of a width such that the outer perimeter thereof is approximately the same dimensions as the outer dimensions of panel 30 as shown in FIGS. 4 and 5.
  • a transversely tubular element 48 b of flexible sealant material trapping a quantity of a compressible fluid such as air is provided as shown in FIG. 4A between the inner face 50 of panel 30 and the opposed face 52 of secondary support member 44 .
  • An enlarged cross-sectional view of element 48 b is illustrated in FIG. 11.
  • Another exemplary tubular, flexible element 48 is shown in enlarged cross-section in FIG. 12.
  • a non-tubular, flexible sealant element 48 a as depicted in FIG. 13 and illustrated schematically in FIG. 4 may also be used for providing a seal between panel 30 and secondary support member 44 .
  • Sealant element 48 b may either be of synthetic foam resin material, or a sufficiently flexible solid polymer for use in this application.
  • a rigid, generally planar, quadrate spacer plate 54 is provided between face 50 of panel 30 and the opposing face 52 of secondary support member 44 in surrounding relationship to the element 48 .
  • the thickness of plate 54 is chosen to assure that flexible element 48 is compressed only to a predetermined extent to assure that an adequate seal is provided between the process side and the atmospheric side of the vent panel assembly 10 around the perimeter of the vent panel 30 under the normal operating conditions within the protected confined area likely to be encountered for that specific application.
  • the flexible sealant element 48 may be constructed of various materials including silicone, Teflon, EPDM, Viton, and other equivalent compounds.
  • the sealant element 48 should be of a thickness such that in its compressed state the sealant element will be maintained in full sealing engagement with face 50 of panel 30 in opposition to face 52 of secondary support member 44 .
  • the spacer plate 54 may also be about 0.08′′ thick. It can be seen from FIGS. 4 and 5 that spacer plate 54 has an outer peripheral edge generally co-extensive with the outer margins of panel 30 and secondary support member 44 , while the inner rectangular opening 56 of spacer plate 54 is spaced outwardly from the edge of secondary support member 44 defining aperture 46 .
  • the flexible sealant material defining element 48 should be of composition such that it will remain flexible at the operating temperature within the confines of bag house 12 and to remain flexible for an extended period of time which typically is the norm before vent panel 30 is actuated as a result of an explosive event within the bag house 12 .
  • a flexible, quadrate gasket 58 is adhesively secured to the outer face 60 of secondary support member 44 and has a central rectangular opening 62 of dimensions approximately equal to the dimension of aperture 46 in secondary support member 44 .
  • the gasket 58 is preferably of synthetic resin tubular foam or other sealing material and in one embodiment may have a nominal thickness before compression of about 0.35′′.
  • the outer peripheral margin 64 of gasket 58 is generally complemental with the outer perimeter of secondary support member 44 .
  • the primary support member 26 , panel 30 , spacer plate 54 and secondary support member 44 have a series of aligned throughholes 66 , each of which receives a respective rivet 68 for rigidly interconnecting the assembly of primary support member 26 , panel 30 , spacer plate 54 and secondary support member 44 .
  • the preferred pattern of rivets 68 which interconnect primary support member 26 , panel 30 , spacer plate 54 and secondary support member 44 is illustrated for example in FIG. 2.
  • the spacer plate 54 provides a continuous space of uniform distance between the opposing surfaces of spacer plate 54 and panel 30 so that during fabrication of vent panel assembly 10 , predetermined compression of the sealant element 48 will uniformly be obtained.
  • the overpressure vent panel assembly 10 also is provided with a plurality of openings 70 therein for receiving fasteners such as bolts 72 carried by mounting frame 22 which serve to releasably affix assembly 10 to mounting frame 22 .
  • Cylindrical spacers 76 (FIG. 4A) surrounding each of the bolts 72 and of less height that the uncompressed thickness of gasket 58 assure that the gasket 58 is compressed to a predetermined extent upon initial installation of the vent panel assembly 10 and to the same degree of compression each time a replacement vent panel assembly 10 is mounted on support frame 22 .
  • the primary support member 26 is provided with a series of spaced, integral lugs 78 which project inwardly a small distance into the relief opening 28 from respective side segments of member 26 .
  • the lugs 78 are engaged by adjacent surfaces of panel 30 during opening of the panel under an overpressure and serve to distribute forces more evenly across the panel 30 to achieve a sudden and unrestricted opening of the central part of panel 30 .
  • Exemplary materials of construction for support members 26 and 44 and spacer plate 54 include stainless steel such as 304 stainless steel, Inconel, Monel or other exotic alloy depending upon the requirements of the particular installation.
  • Panel 30 (as well as the alternate embodiments as described hereunder and illustrated in the drawings) may be fabricated of varying materials including but are not limited to 304 , 304 L, 316 and 316 L stainless steel, aluminum, including aluminum 1100 , 2024 and 6061 , Hastelloy C 276 , Nickel, Monel and Inconel.
  • the thickness of panel 30 may typically vary from about 0.005′′ to about 0.050′′ with the thickness increasing as the vent area increases and as the burst pressure of the vent increases.
  • a coating may be provided over one side or both sides of the panel 30 for particular applications against corrosion is desired, with Teflon being an example of a suitable coating agent.
  • the sealant material making up element 48 may be selected from a number of sealant compositions including Teflon (PFA, FEP, PTFE), silicone, rubbers, elastomers, ceramic materials.
  • Quadrate vent panel assemblies of this invention may range from rectangular shapes of from about 9′′ ⁇ 12′′ to about 44′′ ⁇ 69′′.
  • Unitary overpressure vent panel assembly 10 is a rigid, integrated, one-piece structure especially adapted to be supplied as a unit which meets a user's specifications and that may be secured in place on mounting frame 12 by simply tightening the nuts 74 of respective bolts 72 .
  • the gasket 58 is compressed against the outer flat face of mounting frame 22 to provide a fluid tight seal.
  • the flexible element 48 which is compressed between panel 30 and secondary support member 44 also assures that the vent panel assembly 10 is leak proof when mounted in operating position on the wall 14 of bag house 12 .
  • the entire vent panel assembly 10 may be removed as a unit by simply removing nuts 74 whereupon the integrated assembly 10 may be pulled from the wall 14 of bag house 12 as one piece.
  • Another overpressure vent panel assembly 10 of the same construction as the assembly that has just been removed may be fitted in place, again by simply inserting the replacement assembly 10 over bolts 72 followed by retightening the nuts 74 .
  • overpressure vent panel assembly 10 in conjunction with assured internal sealing of the components of the integrated unit and the complete seal provided by gasket 58 against mounting frame 22 are important factors not only from the standpoint of ease of mounting and replacement of vent panel assembly 10 , but also because of the inherent integrity of the unit and the manner in which it is mounted on the confined area to be protected from an overpressure.
  • vent panel assembly 10 may also advantageously be used for protecting an area from an overpressure condition that is less than an uncontrolled explosion.
  • the condition that results in bursting of the vent panel in a protected zone may be an overpressure ranging from as little as one fourth psi or one half psi to as much as fifteen psi. It is necessary in these low pressure applications to use materials and closely control the fabrication of the vent panel in order to assure reliable bursting of the panel at a specified low pressure. In most instances, reliable opening of the vent panel at low overpressures can be obtained by the depth of the score pattern as well as the configuration of the score lines.
  • a sharp object such as a knife blade may be provided in sufficient proximity to a relatively thin vent panel such that upon excursion of the panel toward the knife blade or sharp device when an overpressure is applied to the panel on the side thereof away from the knife or device, the blade or other sharp object severs the panel to effect immediate opening thereof.
  • FIG. 6 Embodiment.
  • the unitary frameless overpressure vent panel assembly 110 of FIG. 6 is identical in construction to vent panel assembly 10 except that the panel 130 has a cross-shaped score line pattern 134 comprising intersecting linear line segments 1 , 36 and 138 which extend to respective margins of the relief opening 128 in primary support member 126 .
  • the panel 20 upon occurrence of an overpressure condition within a confined area protected by vent panel assembly 110 , the panel 20 initially opens at the intersection of score line segments 136 and 138 whereupon the quadrate sections defined by line segments 136 and 138 fully open outwardly in opposite directions.
  • the unscored areas of panel 130 within the confines of relief opening 128 act as hinges so that there is no fragmentation of panel 130 as it fully opens.
  • FIG. 7 Embodiment
  • the overpressure vent panel assembly 210 of FIG. 7 is identical in construction to vent panel 10 , except for the provision of a U-shaped score pattern 234 in panel 230 which is presented by a central score line segment 236 connected to parallel score line segments 238 and 240 which are perpendicular to score line segment 236 .
  • FIG. 8 Embodiment
  • the overpressure vent panel assembly 310 of FIG. 8 is also identical to vent panel assembly 10 except for the score pattern 330 , which is the presently preferred score pattern.
  • a U-shaped score line pattern 334 is located beneath the inner most edge of primary support panel 326 defining relief opening 328 .
  • the score line pattern 334 is defined by a pair of central score lines segments 336 and 338 each terminating in a perforation 340 while the side score line segments 342 and 344 terminate in respective perforations 346 .
  • the panel 330 fully opens in essentially the same manner when subjected to an overpressure adequate to effect bursting thereof, as panel 230 .
  • the portion of panel 330 between score line segments 336 , 338 , 342 , 344 opens outwardly about a hinge line of panel 330 along the uppermost edge of relief opening 328 of primary support member 326 .
  • the overpressure vent panel assembly 410 of FIG. 9 is of the same construction as vent panel assembly 10 except that the assembly 410 is of circular configuration as depicted and the panel 430 of assembly 410 is provided with a cross-shaped score pattern 434 defined by intersecting score line segments 436 and 438 similar to the score pattern 134 of vent panel assembly 110 .
  • Full opening of vent panel assembly 410 takes place in the same manner as vent panel assembly 110 .
  • the diameter of the round vent panel assembly may vary typically from about 6′′ to about 44′′.
  • vent panel assembly 410 has a cross-shaped score pattern 434 , it is to be understood that the panel may be provided with a variety of score patterns including a semi-circular score pattern in which a portion a portion of the disc is unscored to serve as a hinge upon opening of the disc, and other well known patterns as practiced in this art.
  • vent panel assembly 510 is of the same construction as vent panel assembly 10 except for the surface configuration of the vent panel 530 .
  • the portion of vent panel 530 within the area of the relief opening (not shown) of primary support member 526 has a series of undulations defining side by side, parallel, bulged sections 532 .
  • Score lines segments may be provided if desired in panel 530 along the margins of intersection of respective bulge sections 532 with the deepest score line segment being between domed segments 532 ′ and 532 ′′.
  • vent panel 530 having multiple dome sections 532 opens outwardly starting with the intersection between domed segments 532 ′ and 532 ′′ and the opposed portions of the panel 530 then fold outwardly in opposite directions with the portions of the panel 530 adjacent the side margins of the relief opening in primary support member 526 functioning as hinges so as to avoid fragmentation of the cover 530 .
  • Minimum burst pressures for vent panel assemblies 10 , 110 , 210 , 310 , 410 and 510 range from a minimum of about 1 ⁇ 4th psig to about 15 psig with more typical ranges being from about 2 psig to about 10 psig with the largest size vents having a minimum burst pressure of no more than about 0.5 psig to a maximum burst pressure of about 8-10 psig or higher.
  • the maximum burst pressure is generally the same for all sizes of vent panel assemblies with the minimum burst pressure decreasing within the specified range as the size of the vent becomes larger.
  • a customer's vessel 80 has a cylindrical process flange 82 integral with vessel 80 and aligned with the opening 84 in the side wall of vessel 80 .
  • a circular unitary overpressure vent panel assembly 610 is clamped between flanges 82 and 86 and has an annular primary support member 626 , a annular secondary support member 644 , a circular vent panel 630 and an annular spacer plate 654 between panel 630 and spacer plate 654 .
  • An annular tubular, flexible element 648 is clamped between panel 630 and secondary support member 644 .
  • Annular gasket 658 is interposed between the secondary support member 644 and the opposed face of flange 82 .
  • a series of bolts 672 served to clamp the vent panel assembly between flanges 82 and 86 .
  • vent panel assembly 610 operates in the same manner as vent panel assembly 10 as described above.
  • the overpressure vent panel assembly 710 illustrated in FIGS. 15 and 16 is especially adapted for vacuum applications and is shown as being clamped between the flange 88 of a customer's vessel or structure and an opposed flange 90 .
  • the primary support member 726 differs from the support member 26 principally in the provision of an upstanding quadrate flange 726 a projecting away from the main body of support member 26 in a direction opposite the peripheral out-turned lip 729 of support member 26 .
  • the vent panel 730 which for example may be of the multiple dome construction of panel 530 in the FIG. 10 embodiment has a plurality of out-turned tabs 730 a (FIGS. 16 and 17) which overlie and complementally engage the inner surface of flange 726 a .
  • a tubular flexible sealant element 748 of cross sectional shape as shown in FIG. 13 is interposed between the inner surface of vent panel 730 and the secondary support member 744 of vent panel assembly 710 .
  • the extent of compression of flexible sealant element 748 is controlled by the quadrate spacer plate 754 having a rectangular central opening 756 .
  • FIG. 8 shaped rupture strip 790 (FIG. 17) is interposed between each tab 730 a and a proximal portion of the flange 726 a of primary support member 726 . Openings 792 and 794 are provided in opposite ends of each strip 790 between the reduced width mid-section 790 a thereof.
  • a rivet 796 carried by each tab 730 a extends through the opening 792 of a respective strip 790 while another rivet 796 extending through opening 794 of each strip 790 and secured to flange 726 a is received within a clearance slot 798 in each tab 730 a.
  • the vent panel assembly 710 is especially adapted for use in protecting confined areas where a vacuum exists.
  • the multiple dome panel 730 resists collapse under the vacuum within the protected zone.
  • the provision of a multiple domed vent panel provides improved resistance to reverse buckling of panel 730 , even during cycling of the level of vacuum in the protected area.
  • vent panel 730 has a hinge section on one of the long sides thereof to prevent fragmenting of the vent panel and allowing the pressure that is built up within the protected zone to escape through the opening provided by vent panel assembly 710 .

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
US10/378,771 2002-02-20 2003-03-04 Unitary overpressure vent panel structure Abandoned US20040172889A1 (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
US10/378,771 US20040172889A1 (en) 2003-03-04 2003-03-04 Unitary overpressure vent panel structure
MXPA05009297A MXPA05009297A (es) 2003-03-04 2004-02-20 Estructura de panel de ventilacion de sobrepresion unitario.
EP04713433.3A EP1608828B1 (fr) 2003-03-04 2004-02-20 Ensemble unitaire de panneau de securite contre les surpressions
JP2006508799A JP4832288B2 (ja) 2003-03-04 2004-02-20 単一型過圧力ベントパネル組立物
DK04713433.3T DK1608828T3 (da) 2003-03-04 2004-02-20 Enheds-overtryksventilationspanelarrangement
ES04713433T ES2422654T3 (es) 2003-03-04 2004-02-20 Conjunto de panel de ventilación de sobrepresión unitario
AU2004217494A AU2004217494B2 (en) 2003-03-04 2004-02-20 Unitary overpressure vent panel structure
KR1020057016342A KR101059470B1 (ko) 2003-03-04 2004-02-20 단일 과도압력 통기구 패널 구조물
CNB2004800059207A CN100545404C (zh) 2003-03-04 2004-02-20 整体式过压防爆挡板结构
SI200432059T SI1608828T1 (sl) 2003-03-04 2004-02-20 Enotni sestav nadtlačne razpočne plošče
PCT/US2004/005276 WO2004079110A2 (fr) 2003-03-04 2004-02-20 Structure de panneau de securite contre les surpressions d'une seule piece
BRPI0408080-7A BRPI0408080B1 (pt) 2003-03-04 2004-02-20 estrutura de painel unitário de ventilação de pressão excessiva
CA002517470A CA2517470C (fr) 2003-03-04 2004-02-20 Structure de panneau de securite contre les surpressions d'une seule piece
US11/150,805 US7234278B2 (en) 2002-02-20 2005-06-10 Unitary overpressure vent panel structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/378,771 US20040172889A1 (en) 2003-03-04 2003-03-04 Unitary overpressure vent panel structure

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/150,805 Continuation US7234278B2 (en) 2002-02-20 2005-06-10 Unitary overpressure vent panel structure

Publications (1)

Publication Number Publication Date
US20040172889A1 true US20040172889A1 (en) 2004-09-09

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ID=32926551

Family Applications (2)

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US10/378,771 Abandoned US20040172889A1 (en) 2002-02-20 2003-03-04 Unitary overpressure vent panel structure
US11/150,805 Expired - Lifetime US7234278B2 (en) 2002-02-20 2005-06-10 Unitary overpressure vent panel structure

Family Applications After (1)

Application Number Title Priority Date Filing Date
US11/150,805 Expired - Lifetime US7234278B2 (en) 2002-02-20 2005-06-10 Unitary overpressure vent panel structure

Country Status (13)

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US (2) US20040172889A1 (fr)
EP (1) EP1608828B1 (fr)
JP (1) JP4832288B2 (fr)
KR (1) KR101059470B1 (fr)
CN (1) CN100545404C (fr)
AU (1) AU2004217494B2 (fr)
BR (1) BRPI0408080B1 (fr)
CA (1) CA2517470C (fr)
DK (1) DK1608828T3 (fr)
ES (1) ES2422654T3 (fr)
MX (1) MXPA05009297A (fr)
SI (1) SI1608828T1 (fr)
WO (1) WO2004079110A2 (fr)

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US20070163648A1 (en) * 2006-01-19 2007-07-19 Tom Eijkelenberg Full opening and reclosable explosion vent apparatus
US20080041473A1 (en) * 2006-08-17 2008-02-21 Fike Corporation High overpressure vent structure having spring steel recloser panel
US20100187358A1 (en) * 2009-01-28 2010-07-29 Airbus Operations Gmbh Decompression device for an aircraft
US20110303665A1 (en) * 2009-08-07 2011-12-15 Oklahoma Safety Equipment Company, Inc. Rupture panel
CN102966290A (zh) * 2012-12-10 2013-03-13 河北奥润顺达窗业有限公司 一种铝木复合异形门窗用铝合金型材
EP2819934A4 (fr) * 2012-02-29 2015-10-28 Fike Corp Évacuation à explosion comprenant une plaque à pattes de flambage
US9233747B2 (en) 2013-10-25 2016-01-12 The Boeing Company Decompression panel for use in an aircraft assembly
US9440744B2 (en) 2013-10-17 2016-09-13 The Boeing Company Decompression panel assembly and method of equalizing air pressure differential
US9499251B2 (en) 2013-10-25 2016-11-22 The Boeing Company Decompression panel for use in an aircraft
US9566759B2 (en) 2013-10-25 2017-02-14 The Boeing Company Decompression panel for use in an aircraft assembly
USD817851S1 (en) 2014-03-28 2018-05-15 The Boeing Company Decompression panel
CN108087547A (zh) * 2017-11-08 2018-05-29 天津金泰盛世石化设备有限公司 一种压力容器
US10071795B2 (en) 2013-10-25 2018-09-11 The Boeing Company Clamp device for use with a decompression panel in an aircraft assembly
EP3403921B1 (fr) * 2017-05-19 2021-06-23 Amsafe Bridport Limited Barrière à compartiments avec panneaux de décompression
IT202100003299A1 (it) * 2021-02-15 2022-08-15 Fruit Control Equipments Srl Sistema di sicurezza per preservare l’integrità strutturare di un impian-to per la conservazione di prodotti in particolare ortofrutticoli in at-mosfera controllata
US20220356957A1 (en) * 2019-09-09 2022-11-10 Mayra GUZMAN Pressure relief device
US20220357133A1 (en) * 2019-06-25 2022-11-10 Rheinmetall BAE Systems Land Limited Overpressure protection system for a magazine
US11502369B2 (en) * 2017-01-27 2022-11-15 Gs Yuasa International Ltd. Rupture valve and energy storage device
EP4116607A1 (fr) * 2021-07-08 2023-01-11 FDC-AP Co.,Ltd. Ensemble disque de rupture destiné à un véhicule électrique
US11589470B2 (en) * 2017-12-04 2023-02-21 Vestas Wind Systems A/S Pressure relief arrangement with magnets

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US7587863B2 (en) * 2006-08-17 2009-09-15 Fike Corporation Seal for sanitary overpressure vent structure
DE102007061433B4 (de) * 2007-12-20 2012-10-25 Airbus Operations Gmbh Verbesserte Dekompressionseinrichtung mit einem einstellbaren Auslösedruck
US8418412B2 (en) * 2009-03-17 2013-04-16 San Ford Machinery Co., Ltd. Explosion-proof decompression plate
DE102015116229A1 (de) 2014-09-29 2016-03-31 Rembe Gmbh Safety + Control Berstscheibe
US10619345B2 (en) * 2015-12-10 2020-04-14 Smart Vent Products, Inc. Flood vent having a panel
US9637912B1 (en) 2015-12-10 2017-05-02 Smart Vent Products, Inc. Flood vent having a panel
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US9758982B2 (en) 2015-12-10 2017-09-12 Smart Vent Products, Inc. Flood vent having a panel
US10385611B2 (en) * 2015-12-10 2019-08-20 Smart Vent Products, Inc. Flood vent having a panel
CN106013491B (zh) * 2016-06-21 2018-08-10 沈阳建筑大学 衬板可拆装式防爆舱
CN107840027B (zh) * 2017-08-02 2020-09-11 新黎明科技股份有限公司 Iic级焊接防爆箱体及其箱本体的制作工艺
JP7287812B2 (ja) * 2019-03-26 2023-06-06 アマノ株式会社 集塵装置
DE102020130440A1 (de) 2020-11-18 2022-05-19 Faurecia Autositze Gmbh Überdrucksicherung zur Begrenzung des Drucks eines Fluids
CN114517823B (zh) * 2022-02-10 2023-05-12 西华大学 一种适用于风力发电设备机组中的减振装置
KR102534686B1 (ko) * 2022-03-02 2023-05-26 에프디씨 주식회사 컨테이너의 내부 공기 배출 기능을 가지는 에너지 저장 시스템의 폭발패널 어셈블리
KR102424115B1 (ko) * 2022-04-11 2022-07-22 에프디씨 주식회사 두께 조절이 가능한 단열층을 가지는 에너지 저장 시스템의 폭발패널

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Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070163648A1 (en) * 2006-01-19 2007-07-19 Tom Eijkelenberg Full opening and reclosable explosion vent apparatus
US7798893B2 (en) 2006-01-19 2010-09-21 Fike Corporation Full opening and reclosable explosion vent apparatus
AU2007354289B2 (en) * 2006-08-17 2012-11-15 Fike Corporation High overpressure vent structure having spring steel recloser panel
US20080041473A1 (en) * 2006-08-17 2008-02-21 Fike Corporation High overpressure vent structure having spring steel recloser panel
US7556063B2 (en) * 2006-08-17 2009-07-07 Fike Corporation High overpressure vent structure having spring steel recloser panel
US20100187358A1 (en) * 2009-01-28 2010-07-29 Airbus Operations Gmbh Decompression device for an aircraft
US8567721B2 (en) 2009-01-28 2013-10-29 Airbus Operations Gmbh Decompression device for an aircraft
DE102009006395B4 (de) * 2009-01-28 2014-07-10 Airbus Operations Gmbh Dekompressionsvorichtung für ein Flugzeug
US20110303665A1 (en) * 2009-08-07 2011-12-15 Oklahoma Safety Equipment Company, Inc. Rupture panel
US8322360B2 (en) * 2009-08-07 2012-12-04 Oklahoma Safety Equipment Company, Inc. Rupture panel
US8622071B2 (en) 2009-08-07 2014-01-07 Oklahoma Safety Equipment Company, Inc. Rupture panel
EP2819934A4 (fr) * 2012-02-29 2015-10-28 Fike Corp Évacuation à explosion comprenant une plaque à pattes de flambage
CN102966290A (zh) * 2012-12-10 2013-03-13 河北奥润顺达窗业有限公司 一种铝木复合异形门窗用铝合金型材
US9440744B2 (en) 2013-10-17 2016-09-13 The Boeing Company Decompression panel assembly and method of equalizing air pressure differential
US10071795B2 (en) 2013-10-25 2018-09-11 The Boeing Company Clamp device for use with a decompression panel in an aircraft assembly
US9499251B2 (en) 2013-10-25 2016-11-22 The Boeing Company Decompression panel for use in an aircraft
US9566759B2 (en) 2013-10-25 2017-02-14 The Boeing Company Decompression panel for use in an aircraft assembly
US9751609B2 (en) 2013-10-25 2017-09-05 The Boeing Company Decompression panel for use in an aircraft
US9233747B2 (en) 2013-10-25 2016-01-12 The Boeing Company Decompression panel for use in an aircraft assembly
USD817851S1 (en) 2014-03-28 2018-05-15 The Boeing Company Decompression panel
US11502369B2 (en) * 2017-01-27 2022-11-15 Gs Yuasa International Ltd. Rupture valve and energy storage device
EP3403921B1 (fr) * 2017-05-19 2021-06-23 Amsafe Bridport Limited Barrière à compartiments avec panneaux de décompression
US11130558B2 (en) 2017-05-19 2021-09-28 Amsafe Bridport Limited Compartmental barrier with decompression panels
CN108087547A (zh) * 2017-11-08 2018-05-29 天津金泰盛世石化设备有限公司 一种压力容器
US11589470B2 (en) * 2017-12-04 2023-02-21 Vestas Wind Systems A/S Pressure relief arrangement with magnets
US20220357133A1 (en) * 2019-06-25 2022-11-10 Rheinmetall BAE Systems Land Limited Overpressure protection system for a magazine
US11754376B2 (en) * 2019-06-25 2023-09-12 Rheinmetall BAE Systems Land Limited Overpressure protection system for a magazine
US20220356957A1 (en) * 2019-09-09 2022-11-10 Mayra GUZMAN Pressure relief device
IT202100003299A1 (it) * 2021-02-15 2022-08-15 Fruit Control Equipments Srl Sistema di sicurezza per preservare l’integrità strutturare di un impian-to per la conservazione di prodotti in particolare ortofrutticoli in at-mosfera controllata
EP4116607A1 (fr) * 2021-07-08 2023-01-11 FDC-AP Co.,Ltd. Ensemble disque de rupture destiné à un véhicule électrique

Also Published As

Publication number Publication date
ES2422654T3 (es) 2013-09-12
EP1608828B1 (fr) 2013-04-24
EP1608828A4 (fr) 2007-08-01
AU2004217494B2 (en) 2008-11-13
US20050235576A1 (en) 2005-10-27
JP4832288B2 (ja) 2011-12-07
WO2004079110A2 (fr) 2004-09-16
CA2517470A1 (fr) 2004-09-16
JP2006524785A (ja) 2006-11-02
SI1608828T1 (sl) 2013-09-30
WO2004079110A3 (fr) 2004-11-25
BRPI0408080B1 (pt) 2020-11-03
EP1608828A2 (fr) 2005-12-28
US7234278B2 (en) 2007-06-26
KR20060030013A (ko) 2006-04-07
CA2517470C (fr) 2008-10-28
KR101059470B1 (ko) 2011-08-25
MXPA05009297A (es) 2006-03-21
CN100545404C (zh) 2009-09-30
DK1608828T3 (da) 2013-07-08
BRPI0408080A (pt) 2006-02-14
CN1756882A (zh) 2006-04-05
AU2004217494A1 (en) 2004-09-16

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