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How can storage tanks prevent static electricity in winter
Date: Feb 03, 2020
The storage tanks and cryogenic vacuum storage tanks we often use are usually double-layered. The inner cylinder stores liquefied gas, and a thermal insulation layer is formed between the inner cylinder and the outer cylinder to reduce the heat introduced into the inner cylinder by conduction, convection and radiation. Today we will talk about the electrostatic problem of the storage tank.
Static electricity is a charge that is at rest. In the dry and windy winter, people often encounter this phenomenon in daily life, such as when wearing clothes or combing hair. The manufacturer of the cryogenic storage tank tells you that in fact, there will be static electricity in the storage tank in winter, but many people ignore this problem.
In fact, static electricity sometimes causes problems for storage tanks, such as static electricity can cause sparks, so in winter, some measures must be taken to prevent the generation of static electricity. There are four main methods commonly used by cryogenic storage tank manufacturers, and doing these tasks can reduce the generation of static electricity.
(1) Control the flow rate into the tank
The amount of static electricity generated by oil flowing in the pipeline is proportional to the square of the flow rate. Reducing the flow is an effective way to reduce the static electricity generated by the oil.
Static electricity is a charge that is at rest. In the dry and windy winter, people often encounter this phenomenon in daily life, such as when wearing clothes or combing hair. The manufacturer of the cryogenic storage tank tells you that in fact, there will be static electricity in the storage tank in winter, but many people ignore this problem.
In fact, static electricity sometimes causes problems for storage tanks, such as static electricity can cause sparks, so in winter, some measures must be taken to prevent the generation of static electricity. There are four main methods commonly used by cryogenic storage tank manufacturers, and doing these tasks can reduce the generation of static electricity.
(1) Control the flow rate into the tank
The amount of static electricity generated by oil flowing in the pipeline is proportional to the square of the flow rate. Reducing the flow is an effective way to reduce the static electricity generated by the oil.
(2) Prevent electricity from impact and splash
Oil splashing and filling from the top produces twice as much static electricity as submerged loading from the bottom. If top-filling is used, the feed tube should be inserted into the bottom of the tank.
(3) Elimination of human body static electricity
Workers entering dangerous places should wear anti-static shoes, anti-static clothes or cotton work clothes, and set up a human body electrostatic discharge device at the escalator of the storage tank.
(4) Prevent the accumulation of static electricity
Grounding is a basic and important measure to prevent static electricity. Metal jumpers shall be provided between two adjacent metal objects, flanges or joint pads with insulation. The grounding resistance should be checked regularly to keep the grounding in good condition.
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