Energy - ИРБИСТЕХ

Energy field

Energy

Target  application

Hydrogenerators
Turbogenerators
Transformers
Heat transfer equipment

Description of usage

Professionals in the field of power generation know,  that the maximum performance can be achieved by clean equipment. However, the requirement for minimal downtime leads to an increase in the period between repairs and maintenance service. Dry ice cleaning provides a reliable, fire, electrical and environmental saving cleaning process, that can be used even without cooling, without complete or partial dismantling of the equipment, being cleaned directly in the shop. Contamination of the running parts of gas and steam turbines, windings of electric generators, insulators of transformers leads to a drop in efficiency and a decrease in electricity generation. In addition, the downtime normally required for cleaning can be reduced by up to 65%.

Cryoblasting advantages

Cleaning Effect

Mechanical impact of pellets

Pellets, accelerated in the air stream,  gaining speed up to 300m/s and hit the dirt removing it

Thermal shock

When in contact with the contamination, the granule transmits a temperature of -79°C, which makes the contamination brittle, easier to break down and peel off

Sharp expansion

Dry ice particles are heated when they hit the pollution, as the kinetic energy of the movement turns into heat, after which the particles instantly turn into CO2 gas, expanding in volume by 700 times. This expansion is similar to a gas wedge that exfoliates the contamination.

Properties of dry ice

DRY ICE DOESN'T MELT

Dry ice is solid carbon dioxide (CO2), which, when heated, passes immediately into the gaseous phase, bypassing
the liquid phase. This process is called sublimation.

LOW TEMPERATURE

Dry ice has an extremely low temperature of -78.5°C. Only the temperature of liquid nitrogen, which is -195.8°C, is lower.

ECOLOGICAL SAFETY

Liquid carbon dioxide used for making dry ice is a by-product of various industries, so no additional greenhouse gases are generated during its production.

Comparison with traditional cleaning methods

Chemical cleaning

Significant time is required for complete or partial disassembly and installation, transportation to the site cleaning, requires the involvement of loading equipment and additional personnel, which leads to increasing the time and complexity of cleaning activities

Chemicals and solvents are dangerous to humans

Chemistry can damage the seals, isolation and others materials

Chemical residues can cause corrosion of metal components of equipment

Use of solvents is flammable and explosive

It is necessary to dispose of chemical waste after cleaning (up to 1 l / sq.metre)

Water jet cleaning

Significant time is required for complete or partial disassembly and installation, transportation to the site cleaning, requires the involvement of loading equipment and additional personnel, which leads to increasing the time and complexity of cleaning activities

It takes time to purge and dry the equipment from the remaining water​

Risk of electric shock when working near electrical equipment​

The water jet can damage the seals and soft materials of the equipment

Water residues can cause corrosion of metal components of the equipment

It is necessary to clean and dispose of dirty water after cleaning (60-200 l / sq.metre)

Abrasive blasting

Significant time is required for complete or partial disassembly and installation, transportation to the site cleaning, requires the involvement of loading equipment and additional personnel, which leads to increasing the time and complexity of cleaning activities

It takes time to purge and dry the equipment from the remaining abrasive particles

Danger of abrasive settling in in the lungs

Abrasive damages the surface of the equipment

Risk of abrasive particles getting into hard-to-reach areas of the equipment, which may cause it to malfunction

It is necessary to clean and dispose of the abrasive after cleaning (30-100 kg / sq.metre)

Dry ice blasting

Dry ice disappears immediately after cleaning

Dry ice is not a fire hazard

Dry ice is not explosive

Dry ice does not conduct electricity​

Quick preparation before cleaning

It is possible to clean without stopping the process line

Minimum post-cleaning time after processing

Degreases and disinfects the surface

Contaminant types VS Air pressure

Light contaminants
Сompressed air is required
from 0 ATM
Average contaminants
Сompressed air is required
from 0 ATM
Complicated contaminants
Сompressed air is required
from 0 ATM

Supersonic nozzles are required

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