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Petrochemical human body electrostatic discharge device/instrument

The PS-A human static discharge alarm is a new generation explosion-proof product designed for the petrochemical industry. It can intelligently detect

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Detailed information on PSA/PS-A petrochemical human electrostatic discharge device/instrument:

In recent years, China's petroleum industry has developed rapidly, accompanied by frequent incidents of electrostatic accidents, causing significant economic losses and personal injuries. The causes of electrostatic accidents are not complex, but they have great concealment, which brings confusion and pressure to the safety management of enterprises.

The PS-A human static discharge alarm is a new generation explosion-proof product designed for the petrochemical industry. It can intelligently detect whether the human body static voltage has been completely removed, and when the human body static voltage is at a dangerous value, it will emit an audible and visual alarm prompt.

It is made of specially designed conductive plastic material, which effectively extends the static discharge time, safely releases static energy, and ensures no electric shock or spark generation during human static discharge, completely eliminating the hidden danger of fire and explosion accidents caused by static electricity. And a special warning sign "Please eliminate human static electricity" has been specially designed, with a beautiful and generous appearance, providing strong support for enterprise safety production.

At present, the widely used static electricity elimination devices in China use stainless steel metal conductors directly grounded to eliminate human static electricity. This method uses discharge between conductors, which inevitably generates a large amount of electrostatic discharge energy and poses a great safety hazard of ignition discharge. From a safety perspective, it actually adds an extra layer“ignition”. Here, we suggest that you use the PS-A explosion-proof human static discharge alarm to avoid the occurrence of static electricity hazards.

Product Features:

1. Has a distinct warning effect, constantly reminding operators to eliminate their own static electricity;
2. Real time detection of human body electrification, providing corresponding sound and light alarm prompts for dangerous and safe human body states, with red lights stopping and green lights running, vividly displaying the human body electrification situation, making operators willing to use it and forming good work habits;
3. The touch ball is made of "electrostatic sub conductor" material, which slowly releases static electricity, avoids the generation of electric sparks, and eliminates the hidden danger of ignition during operation;
4. The product has undergone safety testing by relevant national departments and obtained explosion-proof certification. It is a truly safe product and can be used with confidence.

How many volts is safe for human body static voltage?

The minimum ignition energy of the oil and gas mixture is 0.018mJ, and the human body capacitance during operation is about 200pF. According to the company's E=1/2CV²According to the calculation, the human body voltage is 425V. That is to say, when the human body voltage is greater than 425V, the discharge energy of the human body is greater than 0.018mJ, and it is possible to ignite the oil and gas mixture.
Therefore, in hazardous workplaces in petroleum and petrochemical industries, the safe value of human voltage should be maintainedLess than 425V.

Performance characteristics:

1. Made of conductive plastic material with a resistance value of 10⁶~10⁹Between them, the release current is small and the discharge time is long, ensuring that no electric sparks are caused;
2. When the green light is on, the static voltage of the human body is less than 150V, and the static energy of the human body is less than 0.002mJ, far below the minimum ignition limit of 0.018mJ for petroleum vapor mixtures. The static voltage is basically eliminated, ensuring the safety of human static electricity;
3. There is a dedicated grounding wire connected to the grounding pile to ensure reliable connection;
4. Equipped with a lithium battery, no external power supply required, easy to install.

Usage scenario:

The generation of static electricity often occurs during oil transportation,storeandloading and unloadingThe following are the most common places where products are used in these two stages:
1. Gas station unloading port;
2. At the entrance of the oil storage area and the upper tank ladder of the storage tank;
3. Outside the pump room door;
4. Oil delivery platform;
5. Beside the self-service fuel dispenser;
6. Other places that require the elimination of human static electricity, such as electronic factories, computer rooms, chemical plant entrances, etc.

Technical Specifications:

1. Detection static voltage range: -15KV to+15KV
2. Alarm voltage: ＞ 150V
3. Alarm method: Sound and light alarm
4. Power supply: lithium battery
5. Working temperature: -40 ℃~+60 ℃
6. Explosion proof grade: ExiaIIBT4

Mechanical parameters:

1. Touch ball diameter: 90mm
2. Steel pipe diameter: 38mm
3. Steel pipe wall thickness: 1.0mm
4. Product height: 1.1m

National standard reference:

GB50074-2002 "Design Code for Petroleum Storage"
Article 14.3.13: Due to the widespread use of artificial fabric clothing, artificial fabrics are prone to static electricity, which often accumulates on the human body. To prevent sparks that may be generated by static electricity, it is necessary to install devices to eliminate human static electricity on the operating platforms that enter the light oil pump room, the top of the light oil tank, the light oil operation area, and the escalators or entrances in explosive hazardous areas.

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