Precautions for electrostatic grounding in petrochemical industry

Petrochemical industry must do electrostatic grounding treatment, this is the basic safety requirements, electrostatic grounding can use a good safety level of equipment such as newson gale explosion-proof electrostatic grounding equipment, various occasions to use different explosion-proof electrostatic grounding monitoring equipment, you can refer to, Beijing Airlida technical guidance.

What are the precautions for electrostatic grounding work in petrochemical industry?

1. In places where electrostatic hazards may occur, the electrostatic grounding of mobile equipment and tools should be carried out according to the following procedures:

1) Before process operation or transportation, grounding work must be done.

2) After the process operation or transportation is completed, the grounding wire can be removed after the specified static time.

3) The location of the grounding wire connection point should avoid disasters and dangerous places, and should not be in the downwind direction of the loading and unloading operation area.

2. In the production process, when the local maintenance of equipment, pipelines and other parts will cause the electrostatic connection circuit of the relevant object to be broken, the temporary jumper should be done, and the resistance value should be restored in time after the overhaul, and the resistance value should be re-measured.

3. Grounding appliances and materials should be used correctly, and checked frequently to ensure the integrity of the electrical path. If there is a break point in the grounding connection, measures should be taken to ensure that the surrounding environment is free of fire hazards before restoring the connection.

4. The metal utensils used for sampling devices, rulers and temperature measurement of flammable and explosive materials are not allowed to collide with the metal walls during operation.

HGT 20675-1990 Code for the design of electrostatic grounding in chemical enterprises.

The most common equipment for electrostatic grounding in petrochemical industry is the electrostatic grounding clamp, which grounds all mobile equipment, barrels, tankers, etc.

The second is the electrostatic grounding clamp with alarm, which adds a light alarm function on the basis of the ordinary grounding clamp to prompt the grounding status of the operator's equipment.

The highest level is the chain alarm system, which can provide both alarm and chain function, and directly shut down the operation when the grounding is poor to prevent further accumulation of static electricity. Newson Gale Explosion-proof Electrostatic Grounding Clamp, Explosion-proof Electrostatic Grounding Alarm, Beijing Airlida - Newson Gale China.

Autumn is coming, in order to keep out the cold, most people will add some nylon or knitted clothing, but for some car owners, clothes have become a safety hazard! As we all know, nylon or knitted clothes are very easy to produce static electricity when rubbing, and when at the gas station, some anxious car owners will get out of the car and plug in the fuel gun, and then the tragedy happened!

Therefore, in autumn and winter, we must maintain a good habit of keeping a car after getting off at the gas station, and then touch the electrostatic discharge meter on the fuel tank when getting off the car, and then carry out other operating activities, in fact, there are too many habits related to our own life safety when maintaining a car, the air is relatively dry in autumn and winter, let's take a look at what precautions are there at the gas station.

3. It is forbidden to use plastic utensils to fill gasoline.

6. After refueling, pay attention to whether the oil gun is pulled out and whether the fuel tank cover is tightly covered.

1.Electrostatic grounding measures should be taken for equipment and pipelines that may generate static electricity hazards in fire hazard places.

2.Pipelines of combustible gases, liquefied hydrocarbons, flammable liquids, and combustible solids shall be provided with electrostatic grounding facilities in the following parts:

1) Access to devices or facilities;

2) The boundary of the hazardous place;

3) Pipeline pump and its filter, buffer, etc.

3.The loading and unloading trestles of flammable liquids and liquefied hydrocarbons, the pipelines, equipment, metal components of buildings, structures and railway rails (except for cathodic protection) shall be electrically connected and grounded.

4.Automobile tank cars, railway tank cars and loading and unloading trestles should be provided with special grounding wires for electrostatics.

5.The grounding resistance value of each group of special electrostatic grounding bodies should be less than 100.

6.In addition to the grounding body of the independent lightning rod device of the first type of lightning protection system, the grounding body for other purposes can be used for electrostatic grounding.

7.If there are no provisions in this code, it shall still comply with the provisions of the current relevant standards and norms.

1. The neutral line of the lighting circuit and the neutral line in the three-phase four-wire system;

2. AC and DC protection grounding systems for voltages at all levels of the rectifier station;

3. Special grounding trunk for DC circuit;

4. Lightning protection down wire (except for the metal equipment body with drainage function).