Due to the low temperature in winter, various liquid transportation pipes will have different degrees of freezing blockage, and even burst of bursts, which will have a serious impact on people's work and life. Therefore, in order to ensure normal work, in the place where anti -freezing insulation, enterprises will choose to install anti -freezing insulation facilities.
As a effective anti -freezing solution, the heat insulation has been widely used in the sample pipe of the power plant instrument. It is mainly through the heat emitted by the thermal body to directly or indirectly compensate the heat loss of the heat pipe to meet the requirements of thermal insulation and freezing. In most power plants, steam accompaniment, antifreeze and electricity heat are the main thermal insulation and anti -freezing methods.
The working principle of steam accompaniment is the heat dissipation of the steam with the heat pipeline to supplement the heat loss of the insulation pipeline, but its thermal energy is unstable, it is a non -mediation accompaniment test, the temperature fluctuates greatly, and the entire pipeline is not uniform. There may be the possibility of vaporization of the measuring medium, and it consumes greater energy consumption.
Anti -frozen solution mainly uses a low -free physical properties with low freezing points (generally ethan glycol) to prevent the pressure pipeline from being solidified by low temperature. However, due to the complicated sample pipeline of the power plant, it is very inconvenient to laid the heat pipeline.
In addition, the steam heat pipe and antifreeze are prone to "bubble, fake, drip, leakage" when running in winter. Therefore, it costs a lot of manpower and material resources to ensure the safety of operation in the pipeline insulation.
The electricity with a tropical power distribution heats out the heat loss of oil and chemical pipelines to maintain the normal operation of the pipeline medium. Compared with the steam pipeline heat -withs heat system, the pipeline electricity heating system electricity with heat and cleaning and environmental protection, and is convenient to install, so the power planting instrument catheter of the power plant is the best heat insulation method.