RU2000128076A - METHOD OF HEAT- AND WATERPROOFING OF A PIPE - Google Patents
METHOD OF HEAT- AND WATERPROOFING OF A PIPEInfo
- 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
Links
- 238000004078 waterproofing Methods 0.000 title claims 3
- 239000000203 mixture Substances 0.000 claims 6
- 239000004698 Polyethylene (PE) Substances 0.000 claims 2
- 229920005830 Polyurethane Foam Polymers 0.000 claims 2
- 229910000831 Steel Inorganic materials 0.000 claims 2
- -1 polyethylene Polymers 0.000 claims 2
- 229920000573 polyethylene Polymers 0.000 claims 2
- 239000011496 polyurethane foam Substances 0.000 claims 2
- 239000010959 steel Substances 0.000 claims 2
- 229920001228 Polyisocyanate Polymers 0.000 claims 1
- 238000005422 blasting Methods 0.000 claims 1
- 238000010892 electric spark Methods 0.000 claims 1
- 238000001125 extrusion Methods 0.000 claims 1
- 239000006260 foam Substances 0.000 claims 1
- 238000005187 foaming Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000002175 menstrual Effects 0.000 claims 1
- 239000005056 polyisocyanate Substances 0.000 claims 1
- 239000004814 polyurethane Substances 0.000 claims 1
- 229920002635 polyurethane Polymers 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
Claims (1)
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 .
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)
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 |
-
2000
- 2000-11-10 RU RU2000128076A patent/RU2189521C2/en not_active IP Right Cessation
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