一、金屬材料保護層結構

說明1、金屬保護層為室外架空保溫結構的主要形式,也可用于室內保溫結構。
2、A-A(2)斷面為考慮管子伸縮的連接方式,長L為管段伸縮量決定。
3、水平管道采用縫氈保溫時,其管頂應預先敷設一層10~30mm厚棉氈,寬度為管周長的1/3,然后再包扎縫氈。
4、鍍鋅鐵皮縱向拉縫應在管道水平中分線下30~45度處。
metal material protection layer structure
1, a metal protective layer for outdoor overhead insulation structure for main form, can also be used for indoor thermal insulation structure.
2, A-A ( 2) section for considering pipe telescopic connection, long L pipe expansion quantity decision.
3, horizontal pipeline using blanket insulation, the top of the pipe shall be laying a layer of 10~30mm thick wool felt, width of the tube circumference 1/3, then wrap blanket.
4, a galvanized iron sheet longitudinal gap should be in the horizontal pipe lines under 30~45 degrees.
二、復合材料保護層結構 composite material protective layer structure

三、垂直管道保護層結構 Vertical pipeline protection layer structure

四、法蘭保護層結構 Flange protection layer structure

五、閥門保護層結構 Valve cladding

說明:
在施工前,保冷結構固定支撐件應按圖安裝好。當管道不準焊接時。托環(1)改用托環(2)立管支撐處的鋼套管內點焊接環形托板,用來托住硬木墊塊,并做好防潮層。鋼套管內徑為D+2&+10mm管壁與托板厚均為&=4mm.
金屬保護層的支撐除在鋼套管部位允許與管道支架統一考慮外,其它部位均采用下板托上板的方式。見A-A斷面圖。
其它有關保冷材料的選用與施工與水平管道相同。
內托板外徑為D+2&+9mm,空心內徑為D+2/3&mm
Explain.
Before the construction, cold insulation structure fixed supports should be installed according to the drawing. When the pipeline allowed welding. Support ring ( 1 ) to support ring ( 2 ) vertical pipe supports of the steel casing welding ring plate, used to hold the wood block, and a moisture-proof layer. Steel casing inside diameter is D+2&+10mm tube wall and the plate thickness is &=4mm.
The protective metal layer support except in the steel casing pipe bracket parts allow and unified consideration, other parts are made of lower plate support plate way. See A-A section map.
Other related cold insulation material selection and construction and horizontal tubes of the same.
Inner plate diameter is D+2&+9mm, the inner diameter of the hollow D+2/3&mm