DREW ACC-9(Air Cooler Cleaner)

ACC-9(Air Cooler Cleaner)

ACC-9 空冷器清洁剂

0048406

Description

ACC-9 air cooler cleaner is a combination of non-abrasive, non-corrosive solvents, detergents and inhibitors. When sprayed on soiled parts of an air cooler, ACC-9 cleaner penetrates and dissolves accumulated deposits, oil and grease so they can be removed by blowing with compressed air or washing with a stream of water. ACC-9 cleaner is highly effective in cleaning soiled air coolers as well as all types of engine parts.

Application and Use

During operation, the fins and tubes of air coolers become fouled with oil, grease, sea salts, dust and carbonaceous matter. These substances are contaminants of the air in the engine room. They are deposited on the cooling surfaces when air from the turbochargers passes through the air cooler. Deposits of these materials can severely reduce the efficiency of air coolers and thereby affect engine operation. ACC-9 cleaner penetrates these deposits, dissolving oil matter and hydrocarbon materials and loosening insoluble solids so that they can easily be removed with a stream of water.

Following are recommended procedures for cleaning with ACC-9 cleaner. The method used will depend on the type of equipment as well as the nature and extent of the deposits and the recommendation of the engine manufacturer.

When using ACC-9 cleaner to make a cleaning emulsion, the correct order of adding ACC-9 cleaner to the water is important. A water emulsion with ACC-9 cleaner is prepared by mixing one part ACC-9 cleaner with two parts water, always adding the ACC-9 cleaner to the water. The resulting emulsion is non-flammable, non-explosive and has no flash point. In addition, the emulsion should be used within two hours of mixing.

1. “In-Service” Cleaning of the Cooler

Using an ACC-9 dosing unit, an ACC-9 emulsion is injected into the air cooler trunk and sprayed over the air cooler while in-service. The cleaning is then followed by a water rinse following the same procedure. This method is approved and endorsed by major manufacturers of slow and medium-speed engines.

2. Spraying of the Cooler

This involves removal of the cooler covers or inspection doors and spraying with ACC-9 emulsion into the tube nest with a high pressure jet followed by a rinsing spray of fresh water or compressed air.

3. Soaking the Cooler in a Cleaner Bath

This involves removing the cooler from the engine and soaking it in a bath or tank of ACC-9 cleaner followed by a fresh water rinse or compressed air blow after sufficient soaking time.

4. Soaking the Cooler In-Situ

With this method the cooler outlet is blanked off and the tube nest is flooded with ACC-9 emulsion. Usually the cleaner is agitated with steam or compressed air. A connection is provided for draining the cooler. When completed, the cleaning is followed by rinsing with fresh water.

5. Closed-Loop Circulation of Cooler

The “closed-loop” cleaning circuit used in this method consists of permanently mounted nozzles connected to a high volume diaphragm or centrifugal pump which draws suction from a cleaning solution tank. With the pump on, the nozzles spray neat ACC-9 air cooler cleaner over the entire surface of the air cooler. The ACC-9 cleaner then drains through the cooler nest to a recirculating line which returns it to the solution tank.

NOTE: THE ENGINES MUST BE SECURED DURING THIS OPERATION.

6. General Parts Cleaning by Soaking

Removable parts may be soaked in a tank of ACC-9 cleaner. When deposits are thick or baked-on hard, the solvent should be stirred by a mechanical agitator. After soaking, wash off any adhering deposits by hosing with water and blow with compressed air until dry.

Details of these methods may vary according to the discretion of the engineer and the apparatus available.

Typical Physical Properties

Appearance: Clear violet liquid

Specific Gravity at 25° C (77° F): 1.02 - 1.04

Flash Point (PMCC): 68.8° C (156° F) min.

Packaging

ACC-9 air cooler cleaner is available in 25-liter containers.