Reed Technology Exchange: Structure and Principle of Water Radiator for Diesel Generator
The water radiator of diesel generator set , commonly known as the water tank, is the coolant of the 135 land-use diesel engine closed-cycle cooling system. The diesel engine rated power and the work load rate, with the choice of models and different specifications of water radiator <water radiator fins of the radiator, the upper and lower radiator, and air-cooled oil radiator bracket, as shown in Fig. The generator's water radiator needs regular maintenance to ensure heat exchange between the coolant and the air. Under normal circumstances, diesel generators should be cleaned inside and outside the water tank for about 500 hours. In order to remove the scale and precipitate impurities inside the radiator, the water in the radiator can be discharged first, and then a certain pressure of water (such as tap water) is passed through the radiator core until the outflowing water is clean. Excessive scale radiators can also be cleaned with cleaning fluid. If the water radiator leaks after a period of use, it can be repaired with solder. When individual pipelines are severely damaged and cannot be repaired, pipe blocking is allowed, but the number of blocked pipes should not exceed 3, otherwise the diesel outlet temperature may exceed the allowable range. The pressure cap on the radiator nozzle can increase the pressure of the system to a certain range, that is, increase the boiling point of the coolant, so that the system works normally at a higher temperature and a certain height, as shown in Figure 3, and also improves Anti-cavitation capability of the system. Ionic capacity of diesel engines and pumps. The pressure cap is equipped with a steam valve and an air valve. When the positive and negative pressure in the water radiator exceeds the requirements, the valve in the pressure cover automatically opens to achieve the purpose of exhaust steam or air intake. 135 series diesel engine water radiator pressure cover steam valve opening pressure 27.5-37.5kpa (0.28-0.38kgf / cm ~ 2); intake valve vacuum opening 0.98-11.8kpa (0.01-0.12kgf / cm ~ 2). << Diesel generator sets should be shut down during operation to avoid hindering the normal operation of the cooling system. The coolant level of the water radiator should be checked regularly and replenished in a timely manner. Low liquid level will affect the cooling effect of the system and exacerbate the cavitation of the diesel engine. Coolant should be added to the water radiator, but care should be taken to avoid steam damage. Note: During the heavy-duty operation of the diesel generator set, do not open the pressure cover of the water tank. After stopping, it is best to unscrew the pressure cover until the water temperature is lower than 70 ° C, which cannot be ignored. The coolant should not be injected into the air cooling system too quickly before the diesel generator set is started. At this time, the water temperature sensor at the outlet pipe end of the cylinder head should be released to exhaust the air in the coolant flow channel. After it is full, stop for 2 minutes, and then fill it up after the air in the system escapes. Diesel engine overheating and prevention. Shelves. When installing a water radiator, the rubber pad or special E-type shock absorber that comes with the water radiator should be installed between the two feet of the public chassis and the support surface to reduce the vibration of the diesel water heater. When using rubber pads, the double nuts should not be over-tightened to avoid loosening, otherwise the vibration reduction effect will be reduced or lost. The structure and principle of cooling radiator of diesel generator set shared with you by Jiangsu Reed Power Equipment Co., Ltd. hopes to be helpful to customers. Our company was established in 2007 and is a professional generator manufacturer with a history of more than 40 years. The company has 64 sales and service departments across the country, providing users with long-term technical consulting, free commissioning, free maintenance and free training services.