Do I need to install a static elimination device next to the CO2 storage tank?

Carbon dioxide storage tank is a common equipment for storing high-pressure gases, and its internal pressure is up to hundreds of times the atmospheric pressure, so it is necessary to pay attention to safety issues during use and maintenance. Static electricity is a common safety hazard, so it is necessary to install a static elimination device next to the CO2 storage tank.

Static electricity refers to the phenomenon of electrification on the surface of an object, when two charged objects come into contact, charge transfer will occur, generating electrostatic sparks, causing fire or **. Next to the CO2 storage tank, static electricity is easily generated due to the high pressure and flow of gases, so measures need to be taken to eliminate static electricity.

A static elimination device is a device specially designed to eliminate static electricity, the principle of which is to neutralize the static charge on the surface of an object by releasing an electric charge, thereby eliminating static electricity. Installing a static elimination device next to the carbon dioxide storage tank can effectively eliminate static electricity and reduce the risk of fire and **.

In short, a static elimination device needs to be installed next to the CO2 storage tank to ensure the safety of production and use. When selecting a static elimination device, you should choose the appropriate model and specification according to the actual situation to ensure that it can effectively eliminate static electricity. At the same time, the static elimination device should be regularly inspected and maintained to ensure that it is operating properly.

Carbon dioxide is a non-flammable gas, generally speaking, the static elimination device is still for flammable and explosive gases, mainly to prevent the possibility of suffocation caused by accidental leakage of carbon dioxide It is recommended to install a high concentration alarm device for carbon dioxide.

Carbon dioxide is not a flammable item and does not need electrostatic grounding, lightning protection is still needed.

A static eliminator is a device or device that can generate positive and negative ions necessary to eliminate the charge on a charged body. There are several types of self-induction, external power supply, radiation, and ion flow cytometry.

The installation requirements for the static eliminator are as follows:

1) The dissipator should be installed at the position with the highest potential of the charged body, generally 0 5 20cm away from the source of electrostatic generation.

Electrode Installation Location:

2) The dissipation electrode is installed vertically facing the charged body.

3) The dissipation electrode without static eliminator is installed in the following positions: the ambient temperature is above 150; Relative humidity above 80; There is a grounded metal object near the charged body; Static electricity generation source, there are other static eliminators; It is easy to contaminate the static eliminator.

Static Eliminator Layout Requirements: a—Static Electricity Source; b—there is a grounding body on the back; c—adjacent to the grounding body; d—Other static eliminators.

4) When the array static eliminator is installed at the same time, the distance between each dissipator electrode should be greater than or equal to 4 times the installation height.

5) The laying position of the cable should avoid the cable being damaged by external force and should be fixed with an insulator.

6) The high-voltage power supply of the external power supply type static eliminator should be installed in a non-explosion-proof place.

The static eliminator should be an important component of the complete process equipment and be supplied by the main engine factory**.

It depends on what type of antistatic equipment, if the antistatic equipment with "wind" can be far away from the object, such as 300mm-600mm, some products with better performance can even be installed to a distance of 900mm away and have the effect of removing static electricity, but some parameters may change greatly, or can not meet the requirements of use, especially the dissipation time of static electricity; If it is without "wind" type, such as a certain ion bar, it is required to be closer, which can generally be set between 50mm-100mm distance; It is necessary to note that in addition to the static electricity effect, it is not the installation distance as close as possible, and sometimes it may be counterproductive, even if the object without static electricity may still carry static electricity or increase static electricity. The above can be installed with the relevant electrostatic meter side test, preferably!

It is generally installed at the outlet end of the product.

The fire hazard of production shall be divided into categories A, B, C, D, and E according to factors such as the materiality used or produced in production and its quantity.

Among them, Class A warehouses:

1. Liquids with flash point less than 28;

2. Gases with a lower limit of less than 10%;

3. Substances that can decompose themselves at room temperature or oxidize in the air and cause rapid spontaneous combustion or **;

4. At room temperature, it is not affected by water vapor in the air, which can produce combustible gas and cause combustion or ** substances.

5. In case of acid, heat, impact, friction, catalysis and flammable inorganic substances such as organic matter or sulfur, it is easy to cause combustion or strong oxidant;

6. Substances that can cause combustion or ** when they are impacted, rubbed or in contact with oxidants and organic matter;

7. Production in closed equipment where the operating temperature is greater than or equal to the spontaneous ignition point of the substance itself.

Supplement: Class A warehouses need to be equipped with static eliminators, flammable, explosive dangerous areas and anti-static places, the electrostatic charges accumulated by the human body or the object itself need to be safely discharged to avoid fire accidents and human electric shock caused by human static electricity.

Solution: Static electricity can be eliminated with an explosion-proof human body electrostatic discharge (6601 series).

An electrostatic eliminator is a device or device that can generate positive and negative ions to eliminate the electrostatic charge on a charged body.

In terms of fundamental power supply, it can be divided into three categories:

There are passive 801 antistatic copper wires, 101 antistatic brushes, and 850 electrostatic ropes;

There are also AC power supply 1250 ion rod, 5100 ion air knife, 4200 ion nozzle, etc., the output voltage of AC is usually about 5-7kv, and the power frequency is the same as that of room electricity;

Finally, there are DC-powered static eliminators, which are divided into 2050 ion fans, low-power ion fans suitable for the electronics industry, and 3024 and a series of DC ion rods, such ion rods.

The installation requirements for the static eliminator are as follows:

1.The static eliminator should be installed at the location where the electrostatic potential of the charged body is highest, and the electrostatic tester can be used to measure the entire production line to find the location of the highest static electricity.

2.The specific installation distance is determined by the type of static eliminator;

Usually the AC static eliminator is 3-10cm, and the one with compressed air will be farther, about 20-50cm, and then far away from the sub will be neutralized, you feel the wind, and there will be no ion flow inside, be careful of being fooled.

DC ion rods usually have a high built-in voltage, up to 30kV, most of them are DC pulses, and the elimination distance is also far, up to 1.5 meters, which is suitable for a wide range of long-distance static removal.

The installation distance of the passive static eliminator is very close, only about 1cm, or it will not be able to sense the charge.

3.Electrode Installation Location:

The static eliminator is installed facing the live material.

Static eliminators are not recommended in the following locations:

The ambient temperature is above 80;

Relative humidity above 80;

There is a large amount of grounding metal in the installation elimination range;

Facing other static eliminators;

4.When multiple eliminators are installed at the same time, the distance between each eliminator should be greater than or equal to 2 times the elimination range of the eliminator to prevent interference and self-elimination.

5.Cable: AC static eliminator is usually connected to the high-voltage power supply, and there is a special cable between them, which needs to avoid the cable being damaged by external force, and should be fixed with an insulator, and the bending radius should generally not exceed 90 degrees.

6.If the use environment is dangerous, please use the EX1250 explosion-proof static eliminator, and the supporting explosion-proof power supply is placed outside the explosion-proof area, and in all explosion-proof safety regulations, it is forbidden to plug and unplug cables in the explosion-proof area.

Our company has a British-made static elimination equipment called a high-voltage generator. What it looks like with 10 small needles on a round bar. 10kV or so DC.

The high-voltage generator generates positive and negative ions by discharging electricity at the tip, and the positive and negative ions must be neutralized with the ions on the surface of the object with static electricity in order to eliminate static electricity. Therefore, the effect of static elimination depends on the number of discharge electrodes and the distance between the electrodes and the electrostatic object. The purpose of compressed air blowing is to reduce the effect of the distance between the electrode and the electrostatic object.

High-power and efficient static elimination devices require multiple high-voltage generators and multiple electrodes, such as electrostatic rods, on which there are multiple electrodes.

First of all, the explosion-proof environment antistatic elimination equipment is an explosion-proof static elimination equipment, it has been certified for safety, in the case of fraserex1250 explosion-proof static eliminator, it can be applied to zone1 and zone2 dangerous areas, the principle of static removal is to ionize air to release a large number of positive and negative ions to neutralize the static electricity on the surface of the object.

No, because CO2 does not support combustion; However, the chemical properties of nitrogen are not active, and it is difficult to react with other substances at room temperature.