• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A protective casing against the external action of heat and fire for a rubber tube (1) consists of a mica-comprising tape wrapping (2) directly surrounding the tube (1), a dense wrapping (6) of ceramic threads, preferably metal-coated disposed on top of this, and a netted material (7) based on glass silk in the form of a compression sleeve holding these coverings together. Preferably a heat-reflecting covering (4) e.g. aluminium coated glass silk is interposed between the wrappings (2) and (6) and a non-inflammable heat-resistant outer sheath (8) e.g. of silicone rubber is provided. The tube (1) may carry fluid or electrical or optical cables. <IMAGE>
    公开号:SU1658827A3
    申请号:SU864028668
    申请日:1986-12-17
    公开日:1991-06-23
    发明作者:Айлентропп Хайнц；Жак Деборд Жан；Штеффес Вальтер；ШВАМБОРН Клаус
    申请人:Хев-Кабель Хайнц Айлентропп Кг (Фирма)；
    IPC主号:
    专利说明:

    This invention relates to multilayer pipelines containing containments against the effects of external heat and fire.
    The purpose of the invention is to increase reliability by reducing heat gain.
    The drawing shows an example of a flexible fire-resistant hydraulic pressure hose.
    The high-pressure rubber hose 1 is surrounded by a bandage of inorganic material or layer 2 predominantly containing this material (mica). Mica-covered tapes 3 are used, for example, based on filament glass yarns 4, while mica layer 3 should be facing inward. from one or several ribbons of glass silk with aluminum coating 6, the metal layer serves as a heat insulating screen and therefore it faces outwards. The heat-spreading coating 7 adjacent to the winding 5 consists of ceramic filaments or fibers 8 that are laid tightly around the winding 5.
    The following glass-silk sheath 9 serves as a pressure cuff for layers, which for large-diameter articles can be replaced with glass silk ribbon, firmly covers ceramic
    ate
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    with
    The yarns simultaneously act on the layers 2 and 5 below. The outer casing 10, which completes the protective sheath, consists of a flame-retardant, fire-resistant material that is resistant to tearing, for example, silicone rubber.
    Despite the multi-layered containment shell and the continuous operation it provides in the event of a fire, the hydraulic hose remains quite flexible, it can also be installed when space is used economically. With an outer diameter of the high pressure inner hose 1 of the order of 25 mm and a layer of mica 2 of the order of 8 mm, the outer diameter of the hose according to the invention only increases to 55 mm.
    Instead of hose 1, any electrical or optical cable can be provided with a protective sheath that will reliably ensure the safety of the cable during a fire and prevent its damage or deterioration.
    The conductive medium pipe 1 or cable is protected from direct heat exposure and the layers located on them already ensure an even distribution of the heat floor around the circumference and along the length of the hose, pipe or cable by means of heat radiation or heat conduction. This protective zone, in which materials that decompose at elevated temperatures are deliberately not applied, experiences additional compression or compaction produced by pressure cuff 9. As a consequence, the inner layers also under thermal influence retain their concentric arrangement around the medium pipe or multi-pipe cable. also around the electric cable and therefore counteract the pressure of the medium inside the pipe or hose along the entire perimeter. The period of maintaining the temperature of the fire with a hose, pipe or multi-tubular cable protected by the proposed sheath increases significantly, despite the high working pressure. The same applies, for example, to the conductors of electrical cables, which may even retain their functional ability during the whole fire if they are located inside the protective sheath made according to the invention.
    The protective sheath can be made of band 2, tightly fitting a pipe, hose or cable and made of an inorganic material or containing mainly this material, reflecting heat from the band
    windings, from a heat-resistant coating applied to the last heat-spreading material, as well as at least one covering this coating and
    5 performing the function of a clamping cuff of the sheath 9 of heat-resistant and / or refractory material and completing the entire protective sheath of the outer protective casing made of a flame-retardant refractory material. Such a containment structure, for example, for hydraulic hoses, is suitable for operation at temperatures in excess of 800 ° C and operating pressures in excess of 180 bar for a sufficiently long period of time.
    It is advisable that the inorganic layer (s) directly covering
    0 a hose, a pipe, a multi-tubular cable or an electric cable, consisted of mica, and to improve the flexibility of the protective layer and to increase the operational reliability, mica is placed on a different substrate. These tapes, the individual layers of which preferably have a different width, are then dusted with coils of the same or different direction around the tubular product. The slush layer is preferably turned inward.
    In addition, it is advisable that the heat-reflecting winding consist of a metal-coated strip of filament
    5 glass strands. Here, for example, end-wound tapes can be used, and to create a continuous thermal protective screen, it is important that the metal coating of the tape be directed
    0 out, i.e. towards a possible source of heat.
    The heat transfer coating consists of one or more layers of tightly packed heat resistant yarns or
    5 fibers. These metal coated yarns or fibers consisting of ceramics or containing a similar material, due to the metal coating, form a layer that conducts heat well, and, moreover, due to the insulating strength, it also forms a special kind of heat insulation in the length direction of the product.
    All of these layers or coatings surrounding the conductive medium of the tubular product are affected by the next layer, which is a braid made of filament glass fiber. This heat-resistant braid simultaneously performs the function of a pressure cuff with respect to the layers beneath it, especially in case of fire, when it is required that the protective sheath for a certain period of time ensure the uninterrupted functioning of the pipe {) these parts.
    To create the proposed containment sheath around a serviceable pipe, hose, multi-tubular cable, as well as an electrical cable or line, first wind the multi-layer v-3 coatings with mica tapes, with the mica coating facing inwards and also covering metal tape from filament glass yarns, while the metal coating must be facing the same These coatings are then overlapped, for example, with ceramic filaments tightly adjacent to each other, applied on them a lash of filament glass fibers, which serves as a pressure cuff, and an outer protective casing. The outer casing in a difficult to ignite or refractory version may consist of any materials. For example, high temperature resistant materials based on fluoropolymers in the form of tapes (sintered or green) can be used. If, for technological reasons, materials suitable for extrusion are to be used, preference should also be given to materials with such high heat resistance. Silicone rubbers are most suitable, for example, for waterproof casings.
    The mica coating of the tape may have a different width from layer to layer, it is advisable to butt-wrap them with the width increasing in the outward direction.
    权利要求:
    Claims (14)
    [1]
    1. Protective sheath for elongated tubular products against external heat and fire, for example, conductive medium pipes, hoses or tubular multiconductor cables, as well as electrical cables and pipelines for pneumatic, hydraulic, electrical or optical transmission of control pulses of measurement results, etc. d, made of a multilayer, placed on the core containing the outer protective casing and the pressure cuff, located under the outer protective casing and made of heat or fire resistant of material, characterized in that, in order to increase naezhnosti by reducing heat leak. protective
    the shell is made of the surrounding tubular product of a band of mica or mica-containing tapes; the bandage is covered with a heat-containing layer of metallized
    glass wool or filaments and an adjacent heat distribution layer containing heat-resistant filaments or fibers, the pressure cuff is made in the form of a braid, and the protective casing is made either of flammable or fire-resistant material.
    [2]
    2. The protective sheath according to claim 1, of which is a case. that the mica in the form of a tape is applied to the tubular product.
    [3]
    3. The protective sheath according to claims 1 and 2, about t - pichyush so that the bandage consists
    from the multilayer winding of the tape covered with mica.
    [4]
    4. The protective sheath according to PP.1 - 3. About t - that with singing mica
    turned inward.
    [5]
    5. Protective sheath according to claim 1, in accordance with the fact that the reflective heat treatment is made of aluminum-coated glass sheeting.
    [6]
    6. The protective sheath according to claim 5, characterized in that the aluminum layer of the tape faces outwards,
    [7]
    7. The protective sheath according to claim 1. about tl and ch and yuda p with so. what's heat distribution
    the layer contains one or more layers of tightly laid threads or fibers
    [8]
    8. The protective sheath of claim 7, wherein the filaments or fibers are made of ceramic or contain such a material and are coated with metal.
    [9]
    9. The protective shell of pop. 1, which differs from te i, which is a pressure cuff in the form. The braid is made of glass silk.
    [10]
    10. The protective sheath according to claim 1. about the fact that the outer protective
    the flame retardant or flame resistant casing is made of elastomer or thermoplastic, for example silicone rubber.
    [11]
    11. The protective sheath according to claims 1 and 10, is about the fact that the outer
    the protective cover is made of inorganic material.
    [12]
    12. The protective sheath according to claims 1 and 10, which is the fact that the outer
    protective cover made of steel tape.
    [13]
    13. Protective sheath according to claims 1 - 4. O t - that the tape covered
    mica, made of different widths from one layer to another.
    [14]
    14. The protective sheath according to claims 1-4 and 13, wherein the tapes covered with mica are end-to-end with a width increasing in the outward direction.
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    类似技术:
    公开号 | 公开日 | 专利标题
    SU1658827A3|1991-06-23|Exterior heat and fire protecting enclosure for elongated tubular articles
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    US4653851A|1987-03-31|Fire resistant fiber optic cable
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    同族专利:
    公开号 | 公开日
    IT8622568D0|1986-12-04|
    FI87832C|1993-02-25|
    FR2591715A1|1987-06-19|
    BE905955A|1987-04-16|
    FR2591715B1|1989-04-28|
    DE3544810A1|1987-06-19|
    GB2184512B|1990-02-07|
    GB8629414D0|1987-01-21|
    SE463974B|1991-02-18|
    IT1213549B|1989-12-20|
    JPS62246726A|1987-10-27|
    NO865124L|1987-06-19|
    PL263005A1|1987-10-19|
    DD254460A5|1988-02-24|
    SE8605411L|1987-06-19|
    GB2184512A|1987-06-24|
    FI864690A|1987-06-19|
    SE8605411D0|1986-12-17|
    FI87832B|1992-11-13|
    FI864690A0|1986-11-18|
    NO865124D0|1986-12-17|
    KR870006162A|1987-07-09|
    引用文献:
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    GB1583956A|1977-03-10|1981-02-04|Bicc Ltd|Electric cables|
    US4137949A|1977-05-11|1979-02-06|General Electric Company|Method of making a fire retardant conduit|
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    GB1595892A|1978-05-31|1981-08-19|Flamemaster Corp|Fire protective insulating product|
    DE2905610A1|1979-02-14|1980-08-28|Gummi Reischl Inh Peter Reisch|Fireproof hose with inner synthetic rubber tube - has tube coated with rubber adhesive layer in which is embedded woven fabric covered with fireproof layer|
    US4450872A|1982-06-18|1984-05-29|The Babcock & Wilcox Company|Fiber pipe protection for water cooled pipes in reheat furnaces|
    EP0224281B1|1982-10-01|1990-12-27|Raychem Limited|Flame retarded cladding|
    NO153549C|1983-04-13|1986-04-09|Norsk Fiberoptikk As|FIRE SAFETY FIBER CABLE.|
    US4513173A|1983-06-07|1985-04-23|Minnesota Mining And Manufacturing Company|Intumescent fire protective sheaths|
    DE3407007A1|1984-02-27|1985-08-29|Bayer Ag, 5090 Leverkusen|FIRE-RESISTANT CAPS|
    FR2573910B1|1984-11-29|1987-06-19|Habia Cable|FLEXIBLE FIRE RESISTANT INSULATION COATING FOR ELECTRICAL CONDUITS, WIRES AND CABLES|DE3631699C2|1986-09-18|1993-11-11|Kabelmetal Electro Gmbh|Flame resistant electrical wire|
    US4818060A|1987-03-31|1989-04-04|American Telephone And Telegraph Company, At&T Bell Laboratories|Optical fiber building cables|
    GB8716308D0|1987-07-10|1987-08-19|Raychem Ltd|Electrical wire|
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    CN109003736A|2018-08-30|2018-12-14|安徽华上电缆科技有限公司|A kind of dedicated double flame retardant type power cables of fire-fighting|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19853544810|DE3544810A1|1985-12-18|1985-12-18|PROTECTIVE COVER AGAINST OUTSIDE HEAT AND FIRE FOR STRING-SHAPED GOODS|
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