• 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:
    The invention relates to the field of pipeline construction and can be used when applying thermal insulation to metal pipes. The aim of the invention is to increase the insulating properties of foam insulation applied to the pipe and reduce material consumption, which is achieved by applying to the pipe at least one plastic layer forming the inner layer, having a density of 0.024 - 0.096. g / cm, and the second, forming the outer layer of the plastic composition, having a density of at least 25% higher than that of the inner layer, and a thickness of 5-30% of the total thickness of the layers, 2 Il. 00 ate SP N3
    公开号:SU1351520A3
    申请号:SU802896301
    申请日:1980-03-14
    公开日:1987-11-07
    发明作者:Мигуел Сеймоур Карлос
    申请人:Дзе Кендалл Компани (Фирма)；
    IPC主号:
    专利说明:

    113
    The invention relates to the construction and can be used when applying heat insulation to metal pipes.
    The purpose of the invention is to increase the insulation properties of foam insulation and reduce material consumption by creating multilayer heat insulation on a metal pipe, each layer of which differs from other layers in apparent density and thickness.
    FIG. Figures 1 and 2 show the options for performing thermal insulation on a metal pipe.
    According to the first embodiment (Fig. 1), the metal pipe 1 has an inner layer 2 of rigid low density polyurethane foam insulation (0.032-0.096 g / cm) and an outer layer 3 of rigid polyurethane foam insulation having a density of at least 25% higher, layer 2, and a thickness of 5-30% of the total thickness of layers 2 and 3.
    According to the second variant (Fig. 2, pipe 1 has an inner layer consisting of several layers having different density, while the layer adjacent to the pipe must have the lowest density.
    The method is carried out as follows.
    Pipe 1 is heated to eliminate condensation, cleaned from dirt, scale and rust (by any known method). The first layer 2 of the foaming composition is usually applied in the form of splashes during rotation and translational movement of the pipe past the nozzles spraying the composition, and the pipe can be primed or coated with an anti-corrosion composition before applying the composition.
    To create layers of thermal insulation on the pipe, any recipe for a foaming liquid polyurethane plastic composition can be used, depending on the specific characteristics required in the final product. A liquid mixture of components comprising a foaming agent is preferred.
    A second layer 3 of foaming liquid plastic composition is applied to the first layer of foam insulation, which can be applied to the first layer.
    0, 2
    layer before or after the first layer hardens.
    The thickness of the first foam layer can vary in the range of 2.5-15 cm, depending on the diameter of the pipe, the temperature at which the pipe should work, the apparent density of the foam.
    To obtain a rigid foam, the following composition can be used, mac.h:
    Crude diphenyl methane diisocyanate 115 Polyol A100
    Silicone oil1
    Triethylenediamine 0.5
    Dilaurate dibutyl 0.1 Trichloromonfluoromethane 35 Tris- (2-chloroethyl) -phosphate 10 All components, except diisocyanate, are premixed, and the latter is added just before foaming and spraying on the pipe. The decrease in the composition of the relative amount of the trichloromethane fluoride blowing agent leads to an increase in the density.
    Any layer or coating may be applied over the outer layer of foam insulation. The outer layer of foam insulation, for example, -, - can be provided by wrapping or extruding with a protective or moisture retaining layer.
    five
    a layer or plastic, such as polyethylene or polypropylene.
    Due to the high resistance to cracking and high resistance to abrasive wear provided by the outer layer of foam insulation, an additional protective layer in most cases is needed only to protect against punctures and moisture penetration.
    five .
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    The method of thermal insulation of the pipe, including layer-by-layer foam insulation, foaming
    Q to cure, characterized in that, in order to increase the insulating properties and reduce the consumption of material, at least one forming internal
    a layer of plastic composition having a density of 0.02A-0.096 g / cm, onto which another plastic composition forming the outer layer is applied, having a density of at least
    .1351520
    25% higher than the inner layer, and one or more extra thicknesses of 5–30% of the total inner layers having different layer thicknesses, while the density of the pipe, while the layer being in contact, can be applied or multiple with the surface of the pipeline, for additional compositions, it has the lowest density.
    fe.f
    Editor I. Gorna
    2
     Compiled by A. Starikov Tehred A. Kravchuk Proofreader M, Maksimishinets
    Order 5302/59 Circulation 804
    VNIIPI USSR State Committee
    Inventions and discoveries 113035, Moscow, Raushsk nab., 4/5
    Production and printing company, Uzhgorod, st. Project, 4
    Subscription
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1351520A3|1987-11-07|Method of pipe heat insulation
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    同族专利:
    公开号 | 公开日
    FR2451261A1|1980-10-10|
    IE49291B1|1985-09-04|
    CH635182A5|1983-03-15|
    AR225305A1|1982-03-15|
    PT70943A|1980-04-01|
    GB2046865A|1980-11-19|
    BE882206A|1980-07-01|
    NL8001541A|1980-09-17|
    NO161208C|1989-07-26|
    CA1160914A|1984-01-24|
    HU178150B|1982-03-28|
    YU66780A|1983-09-30|
    DK151913B|1988-01-11|
    ES8102909A1|1981-02-16|
    IE800532L|1980-09-15|
    IT8020535D0|1980-03-12|
    SE447414B|1986-11-10|
    MX150570A|1984-05-30|
    NO800730L|1980-09-16|
    IT1193927B|1988-08-31|
    CS220765B2|1983-04-29|
    NZ193125A|1983-11-30|
    NL186831B|1990-10-01|
    GR67219B|1981-06-24|
    DK151913C|1988-07-04|
    ES490303A0|1981-02-16|
    PL222668A1|1980-12-01|
    NL186831C|1991-03-01|
    DE3006545A1|1980-09-25|
    EG14165A|1983-09-30|
    FR2451261B1|1984-10-26|
    GB2046865B|1983-06-15|
    ZA80949B|1981-02-25|
    AU532291B2|1983-09-22|
    DE3006545C2|1986-08-21|
    BR8001461A|1980-11-11|
    PH15434A|1983-01-18|
    DD149955A5|1981-08-05|
    SE8001923L|1980-09-16|
    AT377227B|1985-02-25|
    ATA105380A|1984-07-15|
    PL133428B1|1985-06-29|
    JPS55133951A|1980-10-18|
    DK111480A|1980-09-16|
    AU5597380A|1980-09-18|
    NO161208B|1989-04-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EA018041B1|2010-07-22|2013-05-30|Общество С Ограниченной Ответственностью "Смит-Ярцево"|Pipeline heat insulation|JPS4820967B1|1967-05-11|1973-06-25|
    NL6903871A|1969-03-13|1970-09-15|
    US3657036A|1969-10-02|1972-04-18|Nat Gypsum Co|Method for production of rigid polyurethane articles|
    US3644168A|1970-06-12|1972-02-22|Upjohn Co|Varied density polyisocyanurate foam structure|
    US3814659A|1971-02-01|1974-06-04|Upjohn Co|Novel compositions|
    US3802948A|1971-06-09|1974-04-09|Hitachi Shipbuilding Eng Co|Thermal insulation for cryogenic containers|
    US3782998A|1971-11-30|1974-01-01|Atlantic Richfield Co|Method of insulating cold substrates and the insulated substrates|
    GB1357765A|1971-12-03|1974-06-26|Bauakademie Ddr|Insulated pressure pipe|
    US3979818A|1972-05-30|1976-09-14|Shaw Pipe Industries Ltd.|Method of thermally insulating pipe|
    BE885751Q|1976-08-27|1981-02-16|Kendall & Co|METHOD AND APPARATUS FOR APPLYING A FOAMABLE LIQUID TO A CYLINDRICAL OBJECT|
    JPS5472558A|1977-11-21|1979-06-11|Sekisui Plastics|Pipe cover|NL8005255A|1980-09-19|1982-04-16|Wavin Bv|PLASTIC TUBE PART PROVIDED WITH A PLASTIC FOAM INSULATION LAYER.|
    FI77102C|1981-05-25|1989-01-10|Kabel Metallwerke Ghh|Process for producing a heat insulated conduit|
    GB2120747A|1982-05-20|1983-12-07|Hepworth Plastics Ltd|Pipes for pipelines|
    AU590713B2|1984-06-07|1989-11-16|Asahi Chemical Industry Co. Ltd.|Heat insulating structures for low-temperature or cryogenic pipings|
    DE3530187C2|1985-08-23|1994-12-01|Marquet & Cie Noel|Method and device for producing thermally insulated conduits|
    JPH0814359B2|1985-09-02|1996-02-14|株式会社日本メデイクス|Tube for cryogenic piping of beauty and medical equipment|
    DE3534241C2|1985-09-26|1988-06-16|Rheinhold & Mahla Gmbh, 8000 Muenchen, De|
    DE4118362A1|1991-06-05|1992-12-10|Bayer Ag|METHOD OF ISOLATING PIPES|
    AUPM903694A0|1994-10-25|1994-11-17|Adams, Kevin|Multipurpose composite tubing|
    NO962627L|1996-06-20|1998-01-19|Per Ludvig Engesaeter|Anti-corrosion, thermal storage, thermally resistant and thermally insulating coating / casing|
    GB2365096B|1999-05-26|2003-04-09|Thermotite As|Steel pipe with heat insulation for deep-sea pipelines and method of producing it|
    EP1909018B1|2006-10-05|2014-08-20|Georg Fischer Rohrleitungssysteme AG|Pipe connection with thermal insulation and procedure for the manufacture of the pipe connecting part|
    DE202007004596U1|2007-03-26|2007-05-31|Rehau Ag + Co|Plastic pipe has supporting layer and insulating layer, which irrespective of each other consists of extruding thermoplastic polymer|
    ITMI20090939A1|2009-05-27|2010-11-28|Dow Brasil Sa|PIPES FOR DEEP WATER USE|
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    US20130327466A1|2012-06-08|2013-12-12|Pellegrino J. Pisacreta|Insulated tubing|
    JP6080404B2|2012-06-28|2017-02-15|旭有機材株式会社|Piping cover|
    CA2897261C|2013-02-08|2021-04-27|Logstor A/S|Method for producing an insulated pipe in corrugated casing|
    CN103557404B|2013-11-06|2015-11-25|北京豪特耐管道设备有限公司|The insulated piping that a kind of production method of insulated piping and employing the method are produced|
    CN103587215B|2013-11-11|2015-08-05|镇江市高等专科学校|Multiple degrees of freedom flotation tube foamed material heat fused abutted equipment|
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    CN106917933A|2016-03-28|2017-07-04|齐克先|A kind of prefabricated direct-buried thermal insulation pipe of material hole with reinforcing chip and manufacture method|
    CN105972329A|2016-05-25|2016-09-28|安徽普氏生态环境工程有限公司|Novel water supply pipe|
    CN107020774B|2017-04-05|2019-02-22|绵阳高新区三阳塑胶有限责任公司|A kind of multi-layer multi heat preserving and insulating material and preparation method thereof|
    CN110402870B|2019-09-02|2021-09-07|福建亚通新材料科技股份有限公司|Pipeline for deep sea cultivation|
    WO2021094937A1|2019-11-11|2021-05-20|Ecotech S.R.L.|Pre-insulated pipe|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US2079279A| true| 1979-03-15|1979-03-15|
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