RU2000128076A - METHOD OF HEAT- AND WATERPROOFING OF A PIPE - Google Patents

METHOD OF HEAT- AND WATERPROOFING OF A PIPE

Info

Publication number
RU2000128076A
RU2000128076A RU2000128076/06A RU2000128076A RU2000128076A RU 2000128076 A RU2000128076 A RU 2000128076A RU 2000128076/06 A RU2000128076/06 A RU 2000128076/06A RU 2000128076 A RU2000128076 A RU 2000128076A RU 2000128076 A RU2000128076 A RU 2000128076A
Authority
RU
Russia
Prior art keywords
composition
heat
mass
waterproofing
pipe
Prior art date
Application number
RU2000128076/06A
Other languages
Russian (ru)
Other versions
RU2189521C2 (en
Inventor
Коста Энтони
Original Assignee
Закрытое акционерное общество "МосФлоулайн"
Filing date
Publication date
Application filed by Закрытое акционерное общество "МосФлоулайн" filed Critical Закрытое акционерное общество "МосФлоулайн"
Priority to RU2000128076A priority Critical patent/RU2189521C2/en
Priority claimed from RU2000128076A external-priority patent/RU2189521C2/en
Application granted granted Critical
Publication of RU2189521C2 publication Critical patent/RU2189521C2/en
Publication of RU2000128076A publication Critical patent/RU2000128076A/en

Links

Claims (1)

Способ тепло- и гидроизоляции трубы, включающей установку ее в гидроизоляционную полиэтиленовую оболочку, герметизацию оболочки и нанесение на трубу жидкой теплоизоляционной композиции, ее вспенивание и отвердение, отличающийся тем, что внутреннюю поверхность полиэтиленовой оболочки обрабатывают электроискровым разрядом мощностью 28000V при экструдировании, а наружную поверхность стальной трубы - дробеструйной машиной с получением необходимой шероховатости, кроме того, теплоизоляционную полиэтиленполиуретановую композицию получают смешением палильного компонента и полиизоцианат в соотношении 1: 1,57 - 1,63, массу композиции, подлежащей заполнению межтрубного пространства, рассчитывают по формуле
P = VxJxK,
где Р - расчетная масса композиции пенополиуретана;
V - объем менструбного пространства;
J - расчетная кажущаяся плотность пенополиуретана в конструкции;
К - коэффициент избытка пены, определяемый экспериментально и зависящий от толщины теплоизоляционного слоя, отклонений от заданий температуры нагрева стальных труб и оболочек, принимается равным 1,02-1,2 на уровне освоения производства,
а по рассчитанной массе композиции определяется продолжительность заливки в изолируемый объем:
Т = 60хР/Q
где Т - время заливки, с;
Р - расчетная масса композиции, кг;
Q - установленная производительность заливочной машины, кг/мин.
A method of heat and waterproofing a pipe, including installing it in a waterproofing polyethylene sheath, sealing the sheath and applying a liquid heat-insulating composition to the pipe, foaming and hardening, characterized in that the inner surface of the polyethylene sheath is treated with an electric spark discharge with a power of 28000V during extrusion, and the outer surface is steel pipes - by a bead-blasting machine with obtaining the necessary roughness, in addition, a heat-insulating polyethylene-polyurethane composition is obtained by mixing the burning component and polyisocyanate in a ratio of 1: 1.57 - 1.63, the mass of the composition to be filled in the annulus is calculated by the formula
P = VxJxK,
where P is the estimated mass of the composition of the polyurethane foam;
V is the volume of the menstrual space;
J is the estimated apparent density of the polyurethane foam in the structure;
K is the coefficient of excess foam, which is determined experimentally and depends on the thickness of the heat-insulating layer, deviations from the temperature set for heating steel pipes and shells, is assumed to be 1.02-1.2 at the level of production development,
and the calculated mass of the composition determines the duration of pouring into the insulated volume:
T = 60xP / Q
where T is the fill time, s;
P is the estimated mass of the composition, kg;
Q - installed capacity of the filling machine, kg / min .
RU2000128076A 2000-11-10 2000-11-10 Method of pipe heat insulation and waterproofing RU2189521C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2000128076A RU2189521C2 (en) 2000-11-10 2000-11-10 Method of pipe heat insulation and waterproofing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2000128076A RU2189521C2 (en) 2000-11-10 2000-11-10 Method of pipe heat insulation and waterproofing

Publications (2)

Publication Number Publication Date
RU2189521C2 RU2189521C2 (en) 2002-09-20
RU2000128076A true RU2000128076A (en) 2002-10-10

Family

ID=20241919

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2000128076A RU2189521C2 (en) 2000-11-10 2000-11-10 Method of pipe heat insulation and waterproofing

Country Status (1)

Country Link
RU (1) RU2189521C2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA015466B1 (en) * 2008-06-18 2011-08-30 Общество С Ограниченной Ответственностью "Мфл" A set of heat-hydro-insulated pipes and a process for fabricating thereof
EA015447B1 (en) * 2008-06-18 2011-08-30 Общество С Ограниченной Ответственностью "Мфл" Process for fabricating a set of accessories for heat-hydro-insulated pipeline
EA015465B1 (en) * 2008-06-18 2011-08-30 Общество С Ограниченной Ответственностью "Мфл" Complex for fabricating a set of accessories for heat-hydro-insulated pipeline
EA016825B1 (en) * 2008-06-18 2012-07-30 Общество С Ограниченной Ответственностью "Мфл" Complete set of items for heat-hydro-insulated pipeline and procedure for fabricating set of heat-hydro-insulated pipe diminishing pieces
EA016946B1 (en) * 2008-06-18 2012-08-30 Общество С Ограниченной Ответственностью "Мфл" Set of items for heat- and hydro-insulated pipeline and procedure for fabricating a set of heat- and hydro-insulated pipe connections
EA015448B1 (en) * 2008-06-18 2011-08-30 Общество С Ограниченной Ответственностью "Мфл" Process for fabricating heat-hydro-insulated pipe and a set of heat-hydro-insulated pipes thereof

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