A Practical Guide to Scientifically Choosing the Working Pressure of High Pressure Cleaners
A Practical Guide to Scientifically Choosing the Working Pressure of High Pressure Cleaners
As an important tool for modern industrial cleaning, the reasonable choice of its working pressure directly affects the cleaning effect and equipment life. Many users have the misconception that the higher the pressure, the better the washing effect, which is not only un scientific, but also can have many negative effects.
Common Misconceptions about Stress Selection
The dangers of excessive stress
Increased equipment loss: The pressure exceeding the design threshold will cause excess stress on core components such as seals, pipelines and other components, significantly shortening the equipment life. A car manufacturing plant has experienced a 40 percent increase in equipment maintenance costs due to the long-term use of ultra-pressure cleaning.
Reduced cleaning efficiency: When high-pressure water flow hits hard surfaces, it creates a "water hammer effect," causing 30%-50% of energy loss. The actual test shows that the effective cleaning area of 150MPa pressure cleaning concrete surface is reduced by 15% compared with 100MPa.
Increased safety risks: Overpressure operations triple the rate of equipment failure, and one shipyard estimates that 80% of cleaning accidents are caused by improper pressure settings.
The problem of insufficient stress
Stubborn stains are difficult to remove: grease contaminants at the pressure below 70MPa, the cleaning time is extended by 2-3 times. The case of pipeline cleaning in a food factory shows that 50MPa pressure needs to be repeatedly washed 5 times to meet the hygiene standard.
Reduced energy efficiency: pressure shortage, the unit area cleaning energy consumption increased by 25%, a municipal sanitation department statistics show that after pressure optimization, save electricity costs 120 thousand yuan.
A scientific approach to choosing stress
Experimental Procedures
Sample preparation: 3-5 representative cleaning samples are selected
Pressure gradient test: pressure test at 10 MPa intervals
Effect evaluation: The international standard ASTM D6575 was used to evaluate the effect.
Data analysis: establishing stress-effect regression models to determine optimal stress intervals
Examples of analogy applications
Metal surface rust removal: reference to ASTM standards, carbon steel surface oxide removal recommended pressure of 120 to 150 MPa
Concrete cleaning: According to the ACI code, the recommended pressure for ordinary concrete surface cleaning is 80-100MPa.
Food equipment cleaning: According to FDA standards, stainless steel surface cleaning pressure is 70-90MPa
Stress Selection Practice Suggestions
Equipment inspection: calibrate the pressure gauge before use. Errors greater than ± 5% should be repaired immediately
Safety protection: operators must wear protective equipment and set up a security area within 3 meters of working radius.
Parameter recording: establishing a pressure-effect database to inform subsequent cleaning
Regular maintenance: Seals are checked every 50 working hours and system tests every 200 working hours
The scientific choice of the working pressure of a high pressure cleaning machine needs to take into account the performance of the equipment, the object of cleaning and the working environment. Through the organic combination of experimental and analog methods, we can ensure the quality of cleaning and extend the life of the equipment, achieving win-win economic and safety benefits. (Generated by AI)