Condenser rubber ball cleaning device
Heat Changer Fouling
Heat exchanger fouling, the growth of deposits on heat transfer
surfaces, decreases performance and productivity. It is extremely costly
to companies, industry and power plants that are constantly seeking
methods to eliminate it. Several systems exist that combat the
problem-offline or online.
Automatic Tube-cleaning of cooling tower condenser
In a water-cooled air conditioning system, heat is rejected from the refrigerant to the cooling water in the condenser. The impurities in the cooling water circuit are accumulated, and thus the scales and deposits are built up in the condenser tubes, creating fouling problems on the condenser heat transfer surfaces. When fouling and scaling in the condenser increase, the efficiency of the condenser will deteriorate and thus increase chiller energy consumption.
The automatic tube cleaning system is usually installed as an integral part of the condenser. The system cleans the condenser tubes by circulating a number of soft sponge balls through the tubes at pre-set time interval. Since the balls are soft and light in nature, they will not cause any damage to the condenser tube surface and can be carried easily through the tubes by the flowing of water.
Working Procedures
The cleaning balls are introduced and removed from the system through the ball collector. The collector interior is partitioned by a screen into two areas. When the collector is in the ball collection or retention mode the screen separates the collector inlet and outlet. When the screen is positioned such that the inlet and outlet are no longer separated, the balls are conveyed by the flow to the injection site(s). The balls are injected into the cold leg of the circulating cooling water system serving the condenser or heat exchanger so as to achieve a random distribution within the stream. Because the balls (when deaerated) have nearly the same specific gravity as the cooling water, they follow the same path as the water within which they are suspended.
Ball Collector in the open (recirculation) mode. Both the inlet and outlet of the collector are on the same side of the collector screen.
Ball Collector in the collection (ball capture) mode. The screen has been rotated so as to separate the inlet and outlet of the collector.
When the ball charge is correctly sized, each tube is treated by a ball approximately once every five minutes. When the balls have passed through the tubes and enter the cooling water discharge line they are intercepted by the ball strainer(s). When the balls meet the strainer screen they are driven along the screen surface to the ball extraction port located at the point where the down stream extremity of the screen meets the spool body. The balls are then conveyed by a special pump through the ball collector and once again to the injection site.
Characteristics of condenser online cleaning device
1.energy saving,Min 10% and Max 40% ,99%rubber ball could be collected.
2, one-time investment cost could be recovered within one year.
3, automatic on-line cleaning to ensure without fouling, corrosion on the condenser.
4, avoid and eliminate air conditioner engine from abnormal pressure during operation.
5, prolong the service lifespan of compressor and the pipeline.
6, ensure the condenser to be in high heat transfer efficiency.
7,complete physical processing, cost- saving in chemical treatment, environmental protection.
8, full PLC computer programming control, no technicians maintainenance and regulates the frequency of automatic cleaning condenser every day.
Technical parameters
1. Performance: ball collecting rate ≤95%
2. Input voltage: 380V / 50HZ
3. Power: ≤5KW
4. Work environment requirements: Temperature ≤55 ºC, humidity ≤95 ºCRelative
5. Pressure loss: 0.003MPa-0.05MPa
6. Water temperature: ≤50 ºC
7. Working Pressure: ≤1.6MPa.
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