How to calculate the construction price of fire pipe rock wool pipe insulation?

Different regions have different **, and there is no unified standard calculation for the time being. If other calculation methods in force in the country (such as construction and communication engineering workload calculation methods) are applied, ** will be very high.

Rock wool is a man-made fiber made of selected natural rock and blast furnace slag as the main raw material, plus a certain number of auxiliary materials, and melted and blown at high temperature, which has the characteristics of non-combustible, non-toxic, low thermal conductivity, good sound absorption function, insulation, good chemical stability function, long service cycle, etc., and is recognized as a natural and environmentally friendly fireproof and thermal insulation material at home and abroad.

The rock wool fireproof insulation system composed of rock wool and gypsum board, light steel keel, exterior wall board, etc., can be applied to the indoor walls of various buildings, as well as in the fields of agriculture, shipbuilding and reprocessing, and is widely used in petroleum, chemical, electric power and other industries. At the same time, in view of the characteristics of complex building structure and diverse special-shaped curved surfaces, the granular cotton spraying system is used as a whole, which fundamentally solves the problems of many joints, poor sealing, many cold and hot bridges, and complex installation procedures of traditional insulation materials, and can meet the requirements of the building for thermal insulation and sound absorption Class A fire protection at the same time.

The thermal insulation performance of rock wool insulation board has always been very good, especially at room temperature, its thermal insulation performance is much better than that of other thermal insulation boards. In addition, the sound insulation effect of rock wool is also quite good, and it is widely used in Europe and North America. However, the following points should be paid attention to in the construction of rock wool insulation board:

1.The facilities and pipelines that need to be insulated should have no leakage, the surface is dry, no grease, no rust Under some conditions of orange oranges, in order to facilitate anti-corrosion, appropriate coating can be taken.

2.In order to achieve the purpose of minimum heat loss, all joints of the board and felt must be very tightly docked, and the cross joints should be staggered when multi-layer insulation, so as not to form a thermal bridge, and the cold bridge must be eliminated when keeping cold.

3.Rock wool products are used for outdoor insulation or in places that are susceptible to mechanical wear and tear, metal or plastic wrapping, and pay attention to the sealing of joints and seams, add rubber seals if necessary, and the overlapping part of the wrapping layer is not less than 100mm.

4.In the case of particularly low temperature, use resin-free rock wool for insulation, and the moisture-proof layer must also be fireproof.

5.When the temperature exceeds 200 °C, the insulation must be covered with a suitable outer shield so that the possible expansion does not change the thickness and bulk density.

6.For large-diameter or flat-walled equipment with rock wool products insulation, insulation nails should be added when it exceeds 200, and the outer protection (spacing 400mm) should be tightened.

7.When the insulation object is placed vertically and has a considerable height, the insulation layer must have positioning pins or supporting rings, and the spacing should not be greater than 3 meters, so as to prevent the insulation material from sliding down when there is vibration.

8.Outdoor thermal insulation and cold insulation construction should not be carried out in rainy days, otherwise rainproof measures should be taken.

If the construction of rock wool insulation board is treated sloppily, it is likely to lead to the use of rock wool but the effect is not achieved.

Insulation layer thickness * (steel pipe outer diameter + insulation layer thickness) * length.