Flow or Pressure, that is a question
The pressure and flow of the high pressure cleaning machine are core performance parameters that directly affect the cleaning effect and applicable scenarios.The pressure represents the impact strength of the water jet, usually in MPa or bar, 1 MPa = 10 bar; The flow rate represents the volume of water flow per unit time, usually in liters / minutes (L / min), reflecting the scour capacity and cleaning efficiency.
Pressure Range
The pressure range of the high pressure cleaning machine is broad, and can be divided into different grades according to the application scenario:
Domestic or light commercial equipment: The pressure is generally 20-150 bar (about 2-15 MPa), for exa
mple, car washes often use a pressure of 40-80 bar (4--8 MPa) to effectively clean vehicle surface dirt without damaging the paint.
Industrial equipment: The pressure range is wider, with a typical value of 120 bar to 31 MPa (about 120 bar to 310 bar), with some specialized equipment up to 20-140 MPa for piping evacuation, rust removal or concrete surface treatment.
Pressure requirements depend on the hardness of the dirt; for example, oil field pipeline cleaning may require high pressure of 700-1400 bar (70-140 MPa).
Flow rate range
The flow rate is measured in L / min, affecting cleaning efficiency and coverage:
Strike frequency: High flow means that water jets are able to strike more surfaces per unit time, increasing the thoroughness and efficiency of cleaning.
Pressure is another key performance parameter of a high pressure cleaning machine, which determines the strength and permeability of the water jet. Specifically:
Cleanliness: The greater the pressure, the stronger and more penetrating the water jet, able to remove and flush dirt more efficiently. For stubborn stains or surfaces that are difficult to clean, high pressure can provide a better cleaning effect.
Scope of application: Different cleaning tasks require different pressures. For example, when removing marine organisms, paint and rust from the hull of a ship, a higher working pressure (500,900 bar) may be required. In the daily cleaning of reactors, materials, boiler pipes and other equipment, the working pressure may be between 250,700 bar.
Household equipment: low flow, usually 3-15 L / min, focusing on portability.
Commercial and industrial equipment: Wide flow rate range, from 50 L / min to 160 L / min, for example, high-pressure water jet cleaning equipment with flow rate of 50-160 L / min, and ultra-high pressure washing machine with flow rate of 44 L / min at 1350 bar to support multi-nozzle rotation.
Flow and pressure work together, and the greater the flow, the higher the cleaning efficiency at the same pressure.
Relationship between pressure and flow and choice
Pressure and flow jointly determine the power of the cleaning machine (power ≈ pressure × flow), which must be balanced according to actual requirements:
High pressure and low flow are suitable for removing stubborn dirt (such as fouling pipes); High flow and medium pressure are suitable for large area rinsing (e.g. road cleaning).
When selecting the need to match the scene: household cleaning optional pressure below 7MPa, small flow of equipment;Industrial descaling may require ultra-high pressure (> 50 MPa) and large flow scour capacity: the greater the flow, the stronger the water jet scour capacity, the more effective removal of stains and dirt.For large areas or high pollution levels of cleaning objects, a large flow can complete the cleaning task more quickly.
In practical applications, flow and pressure often work together. The combination of high flow and high pressure can provide greater rushing and cleaning power, but it also increases energy consumption and equipment wear. Therefore, when selecting a high pressure cleaning machine, it is necessary to balance these two parameters according to the specific cleaning tasks and requirements.
In summary, flow and pressure play a crucial role in the cleaning process of a high pressure cleaning machine. Together, they affect the cleaning effect and efficiency, and the appropriate combination of parameters needs to be selected according to the specific cleaning tasks and requirements. At the same time, it is also very important to check and maintain the high pressure cleaning machine on a regular basis to ensure its normal operation and safe use.