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管道保温外壳

2021-12-07 11:27:31   来源:网络    点击:

管道是我们生活中必不可少的设施之一。它们具有供水,排水和供暖的功能。它们在日常生活,工业和农业中发挥着重要作用。但是每个人都知道,由于高温或低温,管道会膨胀和收缩,这会导致管道破裂。因此,管道的保温也很重要。那么管道保温有哪些材料呢?管道施工中应注意什么?让我们来看看!

管道保温材料

1.橡塑海绵保温材料

橡塑保温管在-60℃-89℃的环境不会发生物质性改动。它具有独立的气泡结构,不会产生空气对流,而且与水汽阻隔,而且不含有毒物质,外表柔软,容易加工,重要的是使用时间长久。它用于太阳能和热水器等热水管的保温。

2.岩棉保温毡保温材料

岩棉保温毡的主要原料是玄武岩和天然矿物等,它们是通过各种复杂的工艺制成的。具有保温能力强,结构简单,节能显著的特点。因此,常用于储罐和大口径管道的保温。

3.硬质聚氨酯泡沫塑料保温材料

硬质聚氨酯泡沫是一种新型的高分子复合材料。它具有隔热性好、重量轻、导热系数低、闭孔率小等特点。因此,聚氨酯保温管常用于造船,石化,军事研究等领域。

4.超细玻璃面保温材料

超细玻璃表面保温材料是一种轻质工业隔热材料。它具有良好的隔热性,耐腐蚀性等,并且化学稳定且易于构造,因此被广泛使用。


硬质聚氨酯泡沫塑料保温材料


管道建设中的注意事项:

1.如果需要保温的管道工作量不大,可以简单地对其进行保护,但是如果工作量大,则需要注意保温性,不仅要保证管壁的温度,还要还可以防止在施工过程中损坏管道。

2.在对管道进行保温时,请注意管道的长度和厚度。特别是对于极厚的通风管,保持其外部隔热结构完好并封闭。

3.在压力标准下,应注意保温管的压力。此步骤应分为两个步骤。首先,如果压力稳定性无泄漏,则可以开始增加压力。使用符合标准重量的锤子击打焊缝,以查看是否存在泄漏。其次,保温管道中的压力控制在工作压力范围内无泄漏的话,就表示合格。

4.不论采用哪种保温管施工方法,都要注意管道的质量,避免开裂或分层。

5.保温管道接头要具有防水性,密封性。


保温管


Pipes are one of the essential facilities in our lives. They have the functions of water supply, drainage and heating. They play an important role in daily life, industry and agriculture. But everyone knows that due to high or low temperatures, pipes will expand and contract, which can cause pipes to rupture. Therefore, the insulation of the pipeline is also very important. So what materials are there for pipe insulation? What should be paid attention to in pipeline construction? Let's see!


Pipe insulation material


1. Rubber-plastic sponge insulation material


The rubber-plastic insulation pipe will not undergo material changes in the environment of -60℃-89℃. It has an independent bubble structure, does not produce air convection, and is blocked from water vapor, and does not contain toxic substances. It has a soft appearance and is easy to process. The important thing is that it can be used for a long time. It is used for heat preservation of hot water pipes such as solar energy and water heaters.


2. Rock wool insulation felt insulation material


The main raw materials of rock wool insulation felt are basalt and natural minerals, which are made through various complicated processes. It has the characteristics of strong heat preservation ability, simple structure and remarkable energy saving. Therefore, it is often used for the insulation of storage tanks and large-diameter pipelines.


3. Rigid polyurethane foam insulation material


Rigid polyurethane foam is a new type of polymer composite material. It has the characteristics of good heat insulation, light weight, low thermal conductivity, and low closed cell rate. Therefore, polyurethane insulation pipes are often used in shipbuilding, petrochemical, military research and other fields.


4. Superfine glass surface insulation material


Superfine glass surface insulation material is a kind of light industrial insulation material. It has good heat insulation, corrosion resistance, etc., and is chemically stable and easy to construct, so it is widely used.


Rigid polyurethane foam insulation material


Matters needing attention in pipeline construction:


1. If the workload of the pipeline that needs to be insulated is not large, you can simply protect it, but if the workload is large, you need to pay attention to the insulation, not only to ensure the temperature of the pipe wall, but also to prevent damage during the construction process pipeline.


2. When insulating the pipeline, please pay attention to the length and thickness of the pipeline. Especially for extremely thick ventilation pipes, keep the external insulation structure intact and closed.


3. Under the pressure standard, pay attention to the pressure of the insulation pipe. This step should be divided into two steps. First, if there is no leakage in the pressure stability, you can start to increase the pressure. Hit the weld with a hammer that meets the standard weight to check for leaks. Secondly, if the pressure in the insulated pipe is controlled within the working pressure range and there is no leakage, it is qualified.


4. Regardless of the insulation pipe construction method used, attention should be paid to the quality of the pipe to avoid cracking or delamination.


5. Thermal insulation pipe joints should be waterproof and airtight.


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