Nine Characteristic Properties of Polyurethane Direct Buried Pipe

聚氨酯直埋管是由鋼管玻璃鋼內(nèi)護(hù)套玻璃鋼外殼構(gòu)成，由保送介質(zhì)的鋼管及聚氨酯硬質(zhì)泡沫塑料保溫層高密度聚乙烯外套管嚴(yán)密結(jié)合而成，聚氨酯直埋管的功能特點(diǎn)如下：

Polyurethane direct buried pipe is composed of FRP inner sheath of steel pipe and FRP outer shell. It is made up of steel pipe with delivery medium and high density polyethylene outer sleeve with rigid polyurethane foam insulation layer. The functional characteristics of polyurethane direct buried pipe are as follows:

1.運(yùn)用了聚氨酯直埋管導(dǎo)熱系數(shù)低隔熱功能好的硬質(zhì)聚氨酯作爲(wèi)隔熱資料，具有優(yōu)異的隔熱性。

1. The rigid polyurethane with low thermal conductivity and good thermal insulation function is used as thermal insulation material, which has excellent thermal insulation.

2.正常運(yùn)轉(zhuǎn)后130℃的水保送到40以外時(shí)，降溫僅爲(wèi)1℃左右。

2. When the water conservation at 130 C is delivered to 40 kilometers away after normal operation, the cooling rate is only about 1 C.

3.聚氨酯直埋管運(yùn)用了耐腐蝕性的(HDPE：高密度聚乙烯)外套管，不受生物和化學(xué)腐蝕的影響。

3. Polyurethane direct buried pipe uses corrosion-resistant (HDPE: HDPE) outer casing, which is not affected by biological and chemical corrosion.

4.聚氨酯直埋管有很強(qiáng)的防水和耐腐蝕才能，不需附設(shè)管溝，可間接埋上天下或水中，施工簡便迅速，綜合造價(jià)低。

4. Polyurethane direct buried pipes have strong ability of waterproof and corrosion resistance. They can be buried indirectly in the world or water without additional pipe trenches. The construction is simple and rapid, and the comprehensive cost is low.

5.在高溫條件下也具有良好的耐腐蝕和耐沖擊性，可間接埋入凍土層。

5. It also has good corrosion resistance and impact resistance at high temperature, and can be buried in frozen soil indirectly.

6.產(chǎn)品執(zhí)行中華人民共和國城鎮(zhèn)建立行業(yè)規(guī)范CJ/T114-2000和CJ/T115-2001規(guī)范。

6. The product implements CJ/T114-2000 and CJ/T115-2001 for the establishment of industry standards in cities and towns of the People's Republic of China.

7.爲(wèi)確保聚氨酯直埋管三位一體，發(fā)泡前鋼管表面面拋丸處置，塑料管內(nèi)外表電暈處置，其中除銹等級(jí)到達(dá)GB/T8923-1998中Sa2.5的規(guī)則，外殼管內(nèi)外表張力到達(dá)50達(dá)因/厘米。

7. In order to ensure the trinity of polyurethane buried pipe, shot blasting treatment on the surface of steel pipe before foaming and corona treatment on the surface of plastic pipe, the grade of rust removal reaches the rule of Sa2.5 in GB/T8923-1998, and the external tension of shell pipe reaches 50 dyne/cm.

8.可依據(jù)用戶需求提供DN20~DN1200之間各種管徑及保溫厚度的管材和相配套的管件(彎頭三通變徑管固定節(jié)等)

8. Pipes with various diameters and insulation thicknesses between DN20 and DN1200 and matching fittings (elbow three-way variable diameter pipe fixed section, etc.) can be provided according to user's requirements.

9.聚氨酯直埋管采用高密度聚乙烯資料，輔以抗氧劑等各種助劑制成，并對(duì)原資料和產(chǎn)質(zhì)量量停止嚴(yán)厲檢驗(yàn)，確保產(chǎn)質(zhì)量量到達(dá)CJ/114—2000規(guī)范和直埋管外護(hù)管的技術(shù)要求，進(jìn)步了外護(hù)管的全體質(zhì)量。

9. The polyurethane direct buried pipe is made of high density polyethylene (HDPE) material, supplemented by various additives such as antioxidants, and the original data and the quality of the product are strictly checked to ensure that the quality of the product reaches the CJ/114-2000 specification and the technical requirements of the external protective pipe of the direct buried pipe, thus improving the overall quality of the external protective pipe.

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