I. Scope of Cleaning
Main oil tank, feed and return oil pipes for lubricant (including all branches), oil cooler, feed and return oil pipes for main oil pump.
Section II: Cleaning Route
Main oil tank → Cleaning circulation pump → Cool oil cooler → Inlet and return oil main pipes
The system connects to form a closed-loop cleaning system, with the main oil tank serving as the feed port.
Section 3: Overview of Cleaning Techniques
Cleaning is performed in the following steps:
Drainage oil, pressure testing of circulation pathways, hydraulic flushing, degrease cleaning, water rinsing, compressed air blowing and flushing oil replacement, oil sample rinsing analysis
1. Oil Drainage: Ensure no residual oil remains in the oil system prior to cleaning
2. Cyclic Pipeline Pressure Testing
Objective: Complete the circulation system
Process Conditions: Room Temperature
3. Hydro-jetting
Objective: Remove residual oil, loose metal oxides, and other friable dirt from the system.
Process Conditions: Room temperature or heated (depending on ambient temperature)
4. Grease Stain Cleaning
Objective: To fully decompose the residual oil and sludge within the system, and to dislodge as much adherent sludge as possible from the system walls, allowing it to be circulated out with the cleaning fluid.
Operation Steps: After draining the residual liquid from the system, immediately add water to the controlled level and introduce the chemical for forced circulation.
Process Conditions: Room Temperature.
5. Water rinse after degreasing and cleaning
Objective: Eliminate any residual cleaning fluid and loose dirt particles within the system.
Operation Steps: Remove the cleaning fluid, flush with large amounts of water, and regularly drain. Continue flushing until the drain pH value approaches 7. Then, visually inspect the rinse water until it is clear and particle-free. The water flushing process is complete.
Process Conditions: pH around 7 at room temperature.
6. Compressed Air Blasting: (This process is subject to on-site conditions.)
Purpose: To expel any residual water from the system as thoroughly as possible.
7. Flush Oil Replacement:
Objective: Replace all remnants incompatible with the system lubricant within the system.
Process Conditions: Oil flushing and system lubricant operating conditions cycling.
8. Flush Oil Sample Analysis: Conduct routine analysis of the flush oil sample to ensure no residual cleaning fluid remains within the system.
9. Dismantle the temporary system and restore the original system.