By insulating flange at the junction between the new and old pipe, the long line galvanic cell is "broken up" - the anode (new pipe) is electrically separated from the cathode (old pipe).
在新、旧管子连接处安装绝缘法兰，破坏了长管道的原电池，即：阳极(新管子)和阴极(旧管子)间电断路。
In the construction of steel pipe scaffold on electric welding machine, vibrator and other electrical equipment should be placed in dry wood, operators shall wear insulating protective equipment.
在钢管脚手架上施工的电焊机、振捣器等用电设备应放置在枯燥的木板上，操作人员应穿戴绝缘的防护用品。
The technique of directly buried steam pipeline such as insulation construction, insulating material, outside protective pipe, fixing support, compensator, and steam trap connections is discussed.
探讨了直埋蒸汽管道的保温结构、保温材料、外保护管、固定支座、补偿器、疏水装置等技术。
The characteristics of polyurethane foam used as insulating layer of prefabricated directly buried insulating pipe are introduced.
介绍了作为预制直埋保温管保温层的聚氨酯泡沫塑料的特性。
Findings show that, for be in the wrong frozen soil wrought in favor of thermal disturbance, insulating layer thickness respond adopt dam insulating pipe hull skin temperature 'calculation procedure.
研究结果表明，为不对冻土造成较大热扰动，保温层厚度应采用控制保温管外表面温度的计算方法。
Through the wire joint pipe should be located in the junction box, the lap joint should be solid, insulating tape wrapping should be uniform and compact.
穿入配管导线的接头应设在接线盒内，接头搭接应牢固，绝缘带包缠应均匀紧密。
Heat insulating glass wool pipe shell is tubular heat insulating tube cured and formed after heating centrifugal glass cotton pad to which phenolic resin adhesive agent is applied.
保温玻璃棉管壳为离心玻璃棉毡施加酚醛树脂粘结剂加温固化成型的筒状保温管材。
The heat transferring drum pipe, its heat insulativity and its heat-insulating Layer's thickness have not the distance scale.
对于圆筒输热管，其热绝缘性能与绝热层厚度之间的关系，远非象平壁那样呈线性关系。
An exhausting pipe is held in the inner side of the outer box of the box for exhausting the air between the outer box and the inner box upon filling heat insulating material into the box.
容纳在箱体的外箱内侧的排气管，以用于向箱体填充隔热材时排出内箱和外箱之间的空气。
The hot water heat exchanger respectively connects to tap water pipe and heat insulating water tank.
该热水换热器分别与自来水管和保温水箱连接。
Wherein, the collector comprises a cover board, a heat insulating chassis, a heat absorbing plate, a heat pipe, a thermotolerant interlayer and a frame.
其中，集热器包括盖板、保温底盘、吸热板、导热管、耐温隔层、边 框。
High strength prestressed heat barrier pipe is used as a thermal insulating pipe to carry high temperature and pressure vapour into underground for crude oil exploitation.
材质为高强钢的预应力隔热管是在石油开采中用于地下输送高温高压水蒸汽的绝热管。
The quantity of carbon added shall be not less than 1.5kg per each m3 space, after adding carbon, pipe or header shall be sealed with heat insulating cotton etc.
加入碳的量为每立方米空间不少于1.5Kg，加碳后应将管或联箱用保温棉等进行密封。
An insulating air pipe is arranged under the surface and a cross flow cooling fan or a small air conditioner is arranged on the front.
表面下方设隔热风管，正面设横流式降温风机或小型空调室内机；
The cross sections of the plastic pipe, the heat-insulating layer and the aluminum foil are round as optimization, and the heat-insulating layer is made of PE foam materials.
作为优选，所述塑料管、保温层和铝箔的截面为圆形，保温层为PE泡沫材料。
The cross sections of the plastic pipe, the heat-insulating layer and the aluminum foil are round as optimization, and the heat-insulating layer is made of PE foam materials.
作为优选，所述塑料管、保温层和铝箔的截面为圆形，保温层为PE泡沫材料。
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