Cavitation phenomenon and patented hybrid channel cleaning technology

Cleaning in CoolingCare devices is based on the patented method of bidirectional pulsation of the cleaning medium. HYDRAULIC SHOCK WAVES GENERATE A CONTROLLED CAVITATION PHENOMENON THAT INITIATES THE PROCESS OF REMOVING SCALE AND RUST DEPOSITS FROM THE SURFACE OF THE CHANNEL. The rapid compression and expansion of the fluid in the channel causes local pressure drops, resulting in the formation of thousands of cavitation bubbles. Cleaning using the cavitation phenomenon is assisted by a solution of water-based cleaning agent, which further promotes the dissolution of deposits on the canal walls. Unlike other technologies, where the cleaning method is based on pumping aggressive cleaning agents through the mold circuits, CoolingCare's hydromechanical hybrid cleaning method using the cavitation effect occurring inside the channel quickly and effectively mechanically removes lime deposits, allowing the use of less aggressive cleaning agents that are safe for the mold. After cleaning, the channels are automatically rinsed with water and dried with compressed air.

The use of a hybrid pump/pulsator method makes it possible to achieve a high turbulence of the cleaning liquid flow and thus makes the time

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The machine is designed to minimize operator involvement. Its operation comes down to nothing more than creating a new project or selecting an existing one from the base, connecting the channels to the machine, selecting the cleaning algorithm and pressing the START button. Automation, combined with advanced algorithms, enables the machine to carry out subsequent operations, as well as make autonomous decisions to stop or continue the process for each section individually. This allows the operator to significantly save time and focus on other tasks while the machine autonomously performs comprehensive cleaning, diagnostics and tool maintenance.

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It is not uncommon for molds requiring cleaning to be worth hundreds of thousands of euros. Coolingcare machines are equipped with dozens of sensors and safety algorithms that monitor the process in real time, ensuring its stability. In the event of a sudden, unexpected event, such as a leak, the computer immediately stops the cleaning process and notifies the operator.

Here is a list of all security modules installed in CA units:

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A separate, dedicated feed pump for each duct provides greater cleaning efficiency and dynamics. Many cooling duct cleaning systems on the market are equipped with a single feed pump. However, such a solution creates a number of inconveniences to keep in mind when choosing a duct maintenance device. Among the most important of these are:

• Performance of the device - The more cleaning sections the device has, the more channels we will be able to connect at the same time, maintaining independent and repeatable dynamics of the cleaning process. However, it should be noted that feeding multiple channels with a single pump connected to the manifold will give different results compared to the situation where we have individual channels connected to sections fed by a dedicated pump.
  
• Cleaning time - The time savings achieved by connecting several channels to a single cleaning circuit are illusory, because such a connection always generates much higher pressure drops, which directly affects the amount of liquid we are able to pump in a given unit of time, and thus the cleaning efficiency. This is particularly important in the case of equipment with a single pump, since the cleaning efficiency in such a solution depends precisely on the system's ability to pump as much liquid as possible. In practice, connecting cooling circuits in series requires a significant increase in cleaning time, while at the same time providing no guarantee that all lines will be cleaned equally. The individual connection of the ducts provides much greater opportunities to monitor and control both the dynamics of the process and evaluate its effectiveness.
  
• Flow measurement - In the case of a single-section device to which the ducts are connected in series, the flow measurement taken will not inform the user of the actual flow improvement for the individual circuits, but only the sum of the flows, which can be compared "before and after" the process. The user will not be able to assess what increments in flow values have been achieved and whether all channels have actually been cleaned equally.
  
• Leak detection - Combining cooling circuits into a single system has another very important disadvantage. In the event of a leak, we are often unable to determine precisely which channel caused it. When the ducts are connected individually, it is much easier to find the cause of the leak.

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The cleaning time for individual cooling circuits can, and should, vary, given that each duct usually has a different diameter, geometry and length, which affects the pressure drops generated and the cleaning time. Therefore, the method of setting the same cleaning time for all circuits, which is used by manufacturers of cooling duct cleaning equipment, is highly inaccurate. Assuming that all ducts will be equally clean after the same cleaning time is simply wishful thinking, which is far from the actual condition of cooling ducts.

COOLINGCARE CA2 and CA6 are the only machines that allow the user to define a reference value for flow expenditure that serves as a benchmark for future cleaning. On a new tool, the machine operator measures the flow expenditures of each channel and stores the values in a database. When the mold comes back for cleaning, the operator defines a target percentage of the original flow rate to be achieved. The machine then monitors the flow expenditure When the desired flow expenditure is reached, the cleaning process ends, and the operator is informed by a text message sent to his phone number. In the case of an old tool, the machine operator selects the "clean to stable result" option. The machine will measure the expenditure of each circuit at equal intervals, creating a curve showing a gradual increase in flow. At some point, the curve will begin to take the shape of a straight line, indicating that the maximum flow expenditure has been reached. When successive results are similar, the machine stops the cleaning process and informs the operator via text message that the cleaning is complete. The operator can then save the flow rate as a reference for the future.

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