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5 Reasons of Coolant Circulation Failures in Diesel Generator Sets

Aug. 27, 2021

Diesel generator set coolant circulation failure is one of the common failures, users and friends often consult with Starlight's technicians. Starlight power generation equipment has been sorted out to remind everyone that cyclic faults can be checked and resolved from the following 5 aspects.

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1. The water pump of the diesel generator set is faulty. First of all, we must first check whether the water pump works well. If it is found that the gear shaft of the water pump is worn over the limit, it means that the water pump has no effect and needs to be replaced before the circulation can be normal.

2. The coolant level of the diesel generator set is too low or does not meet the requirements. If the liquid level is too low, it can directly cause the temperature of the cooling liquid to rise so that the cooling liquid does not circulate. The cooling liquid is 50% antifreeze + 50% softened water + DCA4 according to the regulations. If it does not meet the regulations, it will cause blockage of the pipeline and produce in the pipe wall. Rust, so that the coolant can not circulate normally.

3. The thermostat of the diesel generator set is faulty. A thermostat is installed in the combustion chamber of the engine to control the temperature of the combustion chamber of the engine. The thermostat must be fully opened at the specified temperature to facilitate small circulation. If there is no thermostat, the coolant cannot maintain the circulating temperature, and a low temperature alarm may be generated.

4. Air is mixed in the cooling system of the diesel generator set, causing the pipeline to be blocked. The damage of the suction valve and exhaust valve on the expansion tank will also directly affect the circulation. At this time, check whether their pressure values meet the regulations and suction pressure. It is 10kpa and the exhaust pressure is 40kpa. In addition to this, whether the exhaust pipe is unblocked is also an important factor affecting the circulation.

5. The radiator fin of the diesel generator set is blocked or damaged. The cooling fan does not work or the cooling fins are blocked, so that the temperature of the cooling liquid cannot be lowered, and the cooling fins are rusted, causing liquid leakage and poor circulation.

Jiangsu Starlight Power Generation Equipment Co., Ltd. was founded in 1974 and is one of the earliest manufacturers of generators and diesel generator sets in China. The company has a registered capital of 218.88 million yuan. The company covers an area of 86,000 square meters and a building area of 55,000 square meters. There are more than 660 employees, including 456 professional technicians and 106 senior technicians. It has 46 sales and service outlets nationwide. The main products are diesel engines, generator sets, and diesel generators, providing users with a one-stop service of design, supply, debugging and maintenance at any time. Starlight has always insisted on using first-class talents, building first-class enterprises, manufacturing first-class products, creating first-class services, and making every effort to build a first-class domestic enterprise. If any question please feel free to visit our website https://www.dieselgeneratortech.com/ or send email to sales@dieselgeneratortech.com.

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