Heating polyurethane Quotation of prefabricated heating directly buried pipe
Polyurethane prefabrication and direct burial Thermal insulation pipe summary:
The polyurethane prefabricated directly buried insulation pipe structure is divided into three layers from the inside to the outside. The inner layer is the working core pipe for conveying medium, and the core pipe is generally made of Seamless pipe (GB8163-87) Spiral Welded pipe (GB9711-88; SY/T5038-92) and longitudinal welded pipe (GB3092-93) and galvanizing Steel pipe And PPR, whose core pipe diameters are [φ 22, 25, 32, 38, 45, 57, 76, 89, 108, 133, 159, 219, 273, 325, 377, 426, 478, 529, 630, 720, 820, 920, 1220]; The insulation layer material is polyurethane foam plastic or composite insulation material, [the thickness of the insulation layer is 30-150mm]; The outer protective layer is high-density polyethylene jacket pipe, glass fiber reinforced plastic winding pipe and anti-corrosion steel pipe.
Quotation of prefabricated polyurethane heating directly buried pipe
Performance of polyurethane prefabricated directly buried insulation pipe:
1. The polyurethane prefabricated directly buried insulation pipe has good mechanical and thermal insulation properties. Generally, it can withstand high temperature of 120 ℃. By modification or combination with other insulation materials, it can withstand high temperature of 180 ℃. It is suitable for insulation works of various cold and hot water high and low temperature pipelines.
2. Polyurethane prefabricated directly buried insulation pipe, also known as "pipe in pipe", is composed of "two-step method", which is composed of high-density polyethylene outer protective layer, polyurethane rigid foam plastic insulation material and steel pipe. The insulation layer is made of rigid polyurethane foam with a density of 60kg/m3 to 80kg/m3, which can fully fill the gap between the steel pipe and the casing, and has a certain bonding strength, so that the steel pipe, the outer casing and the insulation layer form a solid whole.
Advantages of polyurethane prefabricated directly buried insulation pipe:
1. The polyurethane prefabricated directly buried insulation pipe has good thermal insulation performance, and the heat loss is only 25% of the traditional pipe. Long term operation can save energy and reduce energy costs.
2. It has strong waterproof and corrosion resistance. It can be directly buried in the ground or water without the need for pipe trenches. The construction is simple and rapid, and the comprehensive cost is low.
3. It also has good corrosion resistance and impact resistance under low temperature conditions, and can be directly buried in the underground frozen soil.
4. The service life can reach 30-50 years. Correct installation and use can reduce the maintenance cost of the pipe network.
5. The emergency signal system can be set to automatically detect the leakage fault of the pipe network, accurately indicate the fault location and automatically start the emergency signal.
6. The service life can reach 30-50 years. Pipe diameter: DN15-DN600, use: central heating pipeline, refrigeration pipeline, industrial pipeline, etc.
7. Oxygen index: ≥ 27 Density: 40-70kg/m3 Hydrophobicity: cubic cm Thermal conductivity: ℃
Quotation of prefabricated polyurethane heating directly buried pipe
Development prospect of polyurethane prefabricated directly buried insulation pipe:
Polyurethane prefabricated directly buried insulation pipe has become a relatively mature technology in some developed countries abroad. In recent decades, heating engineering technicians are promoting the pipe network laying technology to a higher level by digesting and absorbing this technology.
