There are more and more kinds of thermal insulation building materials on the market. Thermal insulation products of polyurethane materials are enough for consumers to see for a period of time. Ordinary consumers are very concerned about the price when choosing and purchasing. Then I will first look at the market price of polyurethane direct-buried thermal insulation tubes. Considering the overall market trend, according to the development situation of polyurethane direct-buried insulating pipe, the price of direct-buried insulating pipe has been greatly reduced compared with the previous period, which is undoubtedly a good news for consumers. The price factor is affirmed. Let's look at an important part, technical parameters, and how polyurethane direct-buried insulating pipes heat supply.
The thermal insulation of buried polyurethane is still developing at a fairly fast speed. Now let's share some new information about polyurethane insulating pipes. First of all, let's talk about the price of polyurethane insulating pipes that people care about. Generally speaking, with the rapid development of polyurethane insulation pipes and the increase of some new enterprises, the price of polyurethane insulation pipes has been greatly reduced. Of course, it also depends on which kind of buried pipe is in detail.
The scope of application is also becoming more and more widespread, but also because of its cumbersome construction, energy-saving and anti-corrosion effect is remarkable, it has been widely used in various heating, refrigeration, oil and gas pipelines. Specification for polyurethane foam insulated pipes - water, anticorrosive and aging resistant: as polyurethane foam has a closed porosity of more than 92%, polyurethane foam is used as a thermal insulation layer of directly buried pipes, not only to play a role of thermal insulation, but also to effectively avoid water, moisture and other corrosive liquids, gas infiltration. Through, avoid the breeding and development of microorganisms. Strong adaptability: polyurethane foam and all kinds of wood do not stop adhesion. Therefore, as a direct buried pipe insulation layer, there is no need to think about the problem of preventing the adhesion between layers.
The compliance temperature of polyurethane insulation layer is - 196 C, and it can reach 196 C in a short time (more than ten hours). If the user needs 190 C for a long time, we can use high temperature material to shape according to the user's needs. The direct-buried prefabricated insulating pipe (in-pipe) is made of the steel pipe for delivery, the high-density outer sleeve, and the rigid polyurethane foam filled between the steel pipe and the outer sleeve. The high temperature resistance of polyurethane insulating pipe with steel sleeve and directly buried insulating pipe is not comparable to that of other external maintenance pipes. In order to ensure that the open water level is high and that the open water can not be shaded by the polyurethane foamed insulation pipe specification - testing the normal operation of the direct buried pipeline with sound steam, the outer maintenance layer adopts a tight and consolidated steel tube shell.
Anti-corrosive coating: It is to prolong the service life of steel pipes and to maintain the outer steel pipes to prevent corrosion to the steel pipes. External protection steel pipe: In order to ensure the normal operation of the directly buried insulation pipe, maintain the insulation layer from the corrosion of open water, support the working pipe and be able to accept certain external loads. Steel sleeve steel directly buried insulation pipe polyurethane foam layer: the purpose is to ensure the temperature of the medium and the surface of the outer pipe should be kept at normal temperature. Barrier and reflective layer: the aim is to ensure that organic foam data will not enter the inorganic hard and high-temperature resistant layer.
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