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61. 发明专利

JPH03255298A PIPING METHOD FOR TWO-LAYER HEAT INSULATING DUPLEX PIPE 失效
公开(公告)号：JPH03255298A
公开(公告)日：1991-11-14
申请号：JP4957490
申请日：1990-03-02
申请人： KUBOTA KK
发明人： ENOKI KOJI , HAMADA SHIGENOBU
IPC分类号： F16L59/04 , F16L59/147
摘要： PURPOSE:To prevent damage of a jacket due to overheating during operation by calculating the minimum heat insulating thickness of the first layer heat insulating material such that the second layer heat insulating material attains an allowable heat resisting temperature and determining a fixed point in such a manner that the travel of a service pipe due to thermal expansion will not compress the first layer heat insulating material less than the minimum thickness. CONSTITUTION:The minimum heat insulating thickness T of the first layer heat insulating material 13 such that the second layer heat insulating material 14 attains an allowable heat resisting temperature is calculated, and the distance between a fixed point and an unfixed point of bending portion is determined by the calculating expression in such a manner that the travel delta of a service pipe 11 due to thermal expansion will not compress the first layer heat insulating material 13 less than the minimum thickness T. Thus, during the operation of the pipe, the first layer heat insulating material 13 can be prevented from being compressed less than the minimum thickness T to overheat a jacket and damage it.

62. 发明专利

JPH0364757B2 失效
公开(公告)号：JPH0364757B2
公开(公告)日：1991-10-08
申请号：JP12819081
申请日：1981-08-18
申请人： TEISAN KK
发明人： TSUBOI KOSUKE , YONEZAWA SADAO , MORITA MITSUO
IPC分类号： B32B1/08 , B32B15/04 , B32B15/08 , F16L59/04 , F16L59/14 , F16L59/147

63. 实用新型

JPH0383336U 失效
公开(公告)号：JPH0383336U
公开(公告)日：1991-08-23
申请号：JP14491589
申请日：1989-12-18
IPC分类号： G12B17/06 , F02B77/11 , F16L59/04

64. 发明专利

JPH03163297A HEAT INSULATING DEVICE 失效
公开(公告)号：JPH03163297A
公开(公告)日：1991-07-15
申请号：JP21355490
申请日：1990-08-09
申请人： BOC GROUP PLC
发明人： MAIKERU AANESUTO GIYARETSUTO
IPC分类号： F16L59/147 , C08J9/00 , F16L59/04 , F16L59/06
摘要： PURPOSE: To operate a thermal insulation device at less than 77 K by bringing one side thereof into contact with medium at a temperature of less than 77 K, letting the other side thereof adhere on a closed cell material of a substance which is 77 K or less and a solid, and making the closed cell material face a space including a thermal insulation material and nitrogen atmosphere. CONSTITUTION: A pipe line 2 is constituted by an inner surface 4 in contact with very low temperature liquid, for example, helium gas having a temperature of 70 K at the time of operation and an outer surface 6 coated by foaming polyurethane 8. The coating includes closed cells filled with carbon dioxide gas at an ambient temperature. A pipe 2 is arranged in an outer sleeve 10, and an annular space between an inner surface of the sleeve 10 and a coating outer surface 6 of the pipe 2 is filled with mineral thermal insulation powders such as pearlite. As a result, effective thermal insulation becomes possible at a temperature of about 70 K without necessitating vacuum thermal insulation.

65. 实用新型

JPH0351299U 失效
公开(公告)号：JPH0351299U
公开(公告)日：1991-05-17
申请号：JP11165989
申请日：1989-09-26
IPC分类号： F16L9/14 , F16L59/04 , F16L59/06 , F16L59/147

66. 实用新型

JPH02135796U 失效
公开(公告)号：JPH02135796U
公开(公告)日：1990-11-13
申请号：JP4579989
申请日：1989-04-18
IPC分类号： E04B1/80 , B32B23/02 , E04B1/64 , F16L59/04

68. 实用新型

JPH02126826U 失效
公开(公告)号：JPH02126826U
公开(公告)日：1990-10-18
申请号：JP3432489
申请日：1989-03-28
IPC分类号： F16L59/04 , B32B15/14 , F16L59/08

69. 发明专利

JPH02248437A FOAMED HEAT-INSULATION MATERIAL 失效
公开(公告)号：JPH02248437A
公开(公告)日：1990-10-04
申请号：JP6974289
申请日：1989-03-22
申请人： MATSUSHITA REFRIGERATION
发明人： UEKADO KAZUTO , NAKAMOTO HIDEO
IPC分类号： C08J9/02 , F16L59/04
摘要： PURPOSE:To obtain a foamed heat-insulation material while reducing the amount of a fluorocarbon blowing agent used by mixing under agitation a specified premix component containing a fluorocarbon blowing agent with a isocyanate component comprising hydrophobic zeolite and an organic polyisocyanate. CONSTITUTION:A foamed heat-insulation material is produced by mixing a premix component comprising a polyether, a foam stabilizer, a catalyst, water and a fluorocarbon blowing agent under agitation with an isocyanate component comprising zeolite rendered hydrophobic by surface treatment with a silicone. According to the above process, the amount of the fluorocarbon blowing agent used can be reduced by effectively utilizing carbon dioxide produced by the reaction of water with the organic polyisocyanate as a blowing gas, and the carbon dioxide remaining in cells can be removed by the gradual adsorption by the hydrophobic zeolite. Therefore, the thermal conductivity of the gas in cells can be decreased to improve the thermal conductivity of the obtained foamed heat-insulation material, so that a foamed heat-insulation material having excellent heat insulating performances can be provided. Therefore, it can contribute to the solution of a fluorocarbon pollution problem and also to the energy saving.

70. 发明专利

JPH02199398A FIREPROOF HEAT INSULATING MATERIAL 失效
公开(公告)号：JPH02199398A
公开(公告)日：1990-08-07
申请号：JP1507589
申请日：1989-01-26
申请人： NICHIMAN KOSAN KK , MARUBISHI OIL CHEMICAL
发明人： TAKAHASHI TSUGUAKI , NAGASE IWAO , SAITO TAKAO , OGAWA YOSHIKATSU , SHIINA NORIYUKI , TANIGAWA SHIGEHARU
IPC分类号： E04B1/94 , B32B27/18 , B65D81/38 , C08L27/08 , F16L59/04
摘要： PURPOSE:To obtain a material hardly ignitable and inflammable and sufficiently cope with the initial fire fighting by providing a fireproof and moistureproof material layer containing synthetic resin containing vinylidene chloride component 30% or above and an inorganic layer compound and aluminum hydroxide specific pts.wt. respectively on the surface of a heat insulating material. CONSTITUTION:A fireproof heat insulating material with a fireproof and moistureproof material layer containing synthetic resin 100 pts.wt. containing vinylidene chloride component 30% or above, an inorganic layer compound 30-130 pts.wt., and aluminum hydroxide 10-80 pts.wt. is provided on the surface of a heat insulating material. This fireproof heat insulating material is manufactured by coating the aqueous dispersion liquid of the above fireproof and moistureproof material on the surface of a heat insulating material, and spraying, brush coating, trowel coating, and sticking of a sheet-shaped work are used for the coating method. This fireproof heat insulating material is hardly ignitable and inflammable like a structure coated with a fireproof material made of an inorganic substance on the surface of a moistureproof and waterproof coated material, and it can be sufficiently coped with the initial fire fighting.

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