本施工要點適用于各種管道系統
絕緣保溫層施工應注意事項
絕緣材料用于設備及管道保溫，施工時應使無貼面的一面貼干設備及管道表面。水平管道保溫，先在管頂面加鋪10~30mm厚棉氈，寬度為周長的1/3，然后再沿管周壁敷設縫氈，用鍍鋅鐵絲（或鋼帶）扎緊，捆扎間距為200~400mm，對于焊有銷釘的設備，縫氈壓縮到設計厚度時銷釘露頭約5mm，并套上自鎖墊圈緊固。對于不宜焊銷釘的設備，可用鋼帶捆扎。間距為400~600mm，并保證在縫氈寬度方向不小于二道。為使棉氈的施工密度在***~120kg/m3。通常采用的縫氈制品密度是80~***kg/m3，施工壓縮量為20~10***。
選用套管保溫，選用的套管內徑應與管道一致。施工時，張開套管切口部套于管道上，水平管道保溫時，切口置于側下。對于有復合外保護層的套管。撕開切口部搭接頭內面的防護紙，將搭接頭按壓貼平，相鄰兩段套管要靠緊，縫隙處用壓敏膠帶粘接，對于無復合處保護層管殼，可用鍍鋅鐵絲捆扎，每段套管捆2-3道。
絕緣材料用于平壁或大曲面防火保溫。施工時應緊貼于設備外壁，曲面設備需將絕緣板材的兩端接縫切成斜口拼接，通常宜采用銷釘套自鎖墊圈固定。對于不宜焊銷釘的設備，可用鋼帶捆扎，但拐角處要用鍍鋅鐵皮包角，捆扎間距保證每***0mm間距。
當保溫層厚度超過80mm時，應分層保溫。多層保溫時錯縫敷設，分層捆扎。
設備及管道支座、吊架以及法蘭、閥門和人孔等部位，在整體保溫時留一定裝卸間隙，待整體保溫及保護層施工完畢后，再作局部保溫處理。并注意施工完畢的保溫結構不得防礙活動支架的滑動。
法蘭、閥門和入孔保溫，宜采用可拆卸的金屬外殼保溫。
The construction is suitable for various pipeline systems
Insulation construction should pay attention to matters
Insulating materials for equipment and pipe insulation, construction should make no veneers adhered dry equipment and pipe surface. Horizontal pipe insulation, first in the top of the pipe surface paved with 10~30mm thick wool felt, width of 1/3 circumference, and then along the tube wall laying blanket, with galvanized iron wire ( or steel) binding, binding distance is 200~400mm, for welding with pin device, sewed felt is compressed into the design thickness of about 5mm pin outcrop, and a self-locking washer fasteners. To unfavorable welding pin device, usable steel banding. Distance 400~600mm, and that in the slit width direction is not less than two felt. In order to make the wool blanket construction density in ***~120kg/m3. Usually the blanket product density is 80~***kg/m3, the amount of compression of 20~10*** construction.
Selection of casing insulation, the inner diameter of the casing should be consistent with the pipeline. During construction, open trocar incision part set in the pipeline, horizontal pipe insulation, incision in the side. The composite protective layer casing. Tear notch lap joint surface inside the protective paper, a joint press attached, and two adjacent sections of casing is tight, the gap with pressure-sensitive adhesive tape for bonding, without complex protective layer of shell and tube, galvanized iron wire bundle available, each section of tube bundle of 2-3.
Insulating materials for flat wall or surface fire insulation. The construction should be attached to the outer wall surface of the equipment, equipment insulation sheet ends cut into oblique mouth splice joints, usually adopt the dowel sleeve locking washer fixed. To unfavorable welding pin device, usable steel banding, but the corner with galvanized angle, spacing to ensure every ***0mm spacing.
When the insulation layer thickness of more than 80mm, shall be layered insulation. Multilayer insulation fault seam laying, layered strapping.
Equipment and piping support, hanger and flange, valve and manhole and other parts, in the overall insulation leave certain loading and unloading gap, to be integral insulation and protective layers after completion of construction, and then as a local heat treatment. And completed the construction of the insulation structure of the movable bracket sliding shall not interfere.
Flange, valve and into the bore insulation, should adopt the detachable metal shell insulation.
保護層（絕緣層外）施工應注意事項
金屬保護層
安裝前，金屬板兩邊先壓出兩道半圓凸縫。對于設備保溫，為加強金屬板強度，可在每張金屬板對角線上壓兩條交叉拆線。
用于設備及超過3m立管保溫時，將相鄰兩張金屬板的半圓凸縫重疊，自下向上安裝，上層壓住下層板。搭接50mm。當采用銷釘固定時，用木錘對準銷釘將薄板打穿，去除孔邊小塊渣皮。套上3mm厚膠墊，用自鎖墊圈套入壓緊（或用AM6螺母擰）。當采用支撐圈、板固定時，板面重疊（或搭接）處盡量可能對準支撐圈、板，先用3.6mm鉆頭鉆孔，再用自攻螺絲釘M4×15緊固。
用于管道保溫，可直接將金屬圈卷在保溫層外，按管道坡向，自下向上施工，兩板橫向半圓凸縫重疊，縱向搭扣向下，搭接處重合50mm。若采用支撐圈固定時，兩板橫向半圓凸縫重疊處盡量對準支撐圈，以便用自攻螺絲釘緊固。
搭接處先用3.6mm鉆頭鉆孔，再用自攻螺絲釘M4×15緊固。螺絲釘間距為150~200mm。
當自攻螺絲不便使用時，搭接處可用卷邊扣接。
考慮設備及管道運行受熱后膨脹位移，金屬保護應在伸縮方向留適當活動搭口。
復合保護層
油氈，用于潮濕環境的管道及小型筒體設備保溫外保護層?？芍苯泳礓佋诒貙油?，由低向高處敷設，橫向搭接用稀瀝青粘合，縱向搭縫向下，均搭接50mm，然后用鍍鋅鐵絲或鋼帶扎緊，間距為200~400mm。
玻璃布，以螺紋關緊擅纏在保溫層（或油氈）處。前后搭接約40mm，自低向高處施工，布帶兩端和每隔3m處用鍍鋅鐵絲或鋼帶捆扎。
玻璃布復合鋁箔，用于管道及小型筒體設備保溫外保護層?？芍苯臃笤O在除縫氈以外的平整保溫層外，搭接為40mm，接縫處用壓敏膠帶粘氈。
玻璃布乳化瀝青表面涂層，在纏好的玻璃布外表面涂刷乳化瀝青，用量為2~3kg/m2，一般涂刷二道。第二道需在***道干燥后進行。
玻璃纖維增強塑料，在纏好的玻璃布外表面涂刷不飽不口聚酯樹脂，用量為1~2kg/m2。
使用壓敏膠帶，乳化瀝青、不飽和聚酯樹脂等材料時，須向有關生產廠索取性能及使用說明書。在有防火要求時，應選用具有自熄性的。
油漆
對于玻璃布、玻璃鋼以及鍍鋅鐵皮等外保護層，可根據設計要求或環境需要，涂刷各色油漆，用以防護或作識別標記。
The metal protective layer
Before installation, metal plates on either side of first out of two semicircular convex joint. For equipment insulation, to enhance the strength of the metal plate, metal plate in each diagonal pressure two cross stitch.
For equipment and more than 3m riser insulation, adjacent to the two metal plates of semicircle convex slot overlap, from bottom to top, installation, the upper pressing the lower plate. Lap 50mm. When the pin is fixed, with a wooden hammer alignment pin plate through hole edge piece, removal of slag skin. Set of 3mm thick rubber pad, with locking washer sleeve pressing ( or AM6 nut ). When the supporting ring, plate fixation, plate overlap ( or overlapping ) where possible alignment support ring, plate, first with 3.6mm drill bit, then a self-tapping screw M4 × 15 fastening.
For pipeline insulation, which can be directly metal coiled in the insulation layer, on the slopes, bottom-up construction, two panel horizontal semicircle convex joint overlap, longitudinal buckle down, joint coincidence 50mm. If the support ring fixed plate, two lateral semicircular convex joint overlap as alignment support ring, so that the screw fastening.
Joint first with 3.6mm drill bit, then a self-tapping screw M4 × 15 fastening. Screw pitch 150~200mm.
When the screws are inconvenient to use, the lap joints available crimping fastening.
Consideration of the equipment and pipeline heat expansion displacement, metal protection should be in the extension direction keep proper activity placket.
Composite protective layer
Linoleum, for the humid environment of pipes and small cylinder equipment insulation outer protective layer. Direct rolling in the insulation layer, from low to high laying, transverse joint with dilute asphalt adhesive, longitudinal lap seam downward, are lap 50mm, then use galvanized iron or steel truss, distance 200~400mm.
Glass cloth, to close good thread wrapped in insulation layer ( or felt ). After lap around 40mm, from low to high construction, cloth belt ends and at intervals of 3M with galvanized iron or steel banding.
Glass cloth composite aluminum foil, used for pipes and small cylinder equipment insulation outer protective layer. Can be directly laid in addition to blanket outside the flat outside the heat insulation layer, overlapping seams 40mm, pressure-sensitive tape mat.
Glass cloth emulsified asphalt surface coating, in the wrapped glass cloth outer surface coating emulsified asphalt, the dosage of 2~3kg/m2, brushing two. Second in the first line of dried.
Glass fiber reinforced plastic, in the wrapped glass cloth coated hungry do not export polyester resin, the dosage is 1~2kg/m2.
The use of pressure sensitive adhesive tape, emulsified asphalt, unsaturated polyester resin and other materials, payable to the relevant production plant for performance and instruction for use. The fireproof requirement, should be chosen with self-extinguishing properties.
Paint
For glass cloth, glass steel and galvanized iron sheet outer protection layer, according to the design requirements and environmental needs, with colored paint, for protection or identification mark.
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