1,Why should water jacket heaters be installed on diesel generator sets?
Due to the cold weather and low temperature in winter, diesel generators often fail to start. The increase in fuel viscosity is not conducive to fuel atomization and combustion, and the poor fluidity of lubricating oil increases the resistance of various moving parts. In addition, factors such as reduced battery performance can easily lead to difficulties in starting the engine, wear of operating components, reduced power, increased fuel consumption, and decreased power performance. To ensure the safe operation of diesel generator sets under cold conditions, daily maintenance should be carried out, and it is best to install a low-temperature auxiliary starting system preheating device heater (if installed, please regularly check whether the heater is working properly).
2, Installation of water jacket heater for diesel generator set
A screw hole is opened at the connection section between the diesel engine body and the water pump (some engine bodies are designed with installation screw holes), and then a set of circulating water heater devices (usually composed of heater body, connecting rubber hose, control electrical circuit, water pipe accessories) is installed at the water outlet through a screw hole (mostly at the thermostat seat). Common powers include: 1KW, 1.5KW, 2KW, 3KW, 4KW9KW, etc. There are other factors to be determined based on the power output of the diesel generator set and the temperature and environmental conditions of the equipment.
Special attention:
1. The inlet and outlet water pipes of the water jacket heater cannot be connected in reverse or incorrectly;
2. Do not turn on the power when the water jacket heater is not filled with water to prevent dry burning;
3. The water pipe of the water jacket heater should not be twisted to form a high or low slope, and should be straight in order to circulate;
3, Parameters, manufacturing, and category of water jacket heaters
Voltage: 110V/220V/380V
Power: 0.5-9KW
Insulation resistance: Cold state>10M Ω Hot state>50MQ
Leakage current: ≤ 0.5mA/KW in working state
Pressure resistance strength: 1500V/min
Temperature control range: 30 ℃ -50 ℃
Applicable water pressure: ≤ 0.8Mpa
The diesel generator water jacket heater is made of high-quality stainless steel (aluminum casting) and equipped with a constant temperature control device (or forced circulation device (with pump), etc.). It is suitable for: Cummins, Perkins, Mercedes MTU, Caterpillar, Volvo, DOOSAN, Mitsubishi, Kohler, Iveco, MAN, Detroit, Yuchai, Weichai, Steyr and other brands of diesel generator sets, used for preheating start-up and cold and frost prevention.
4, Automatic start and fault alarm system for water jacket heater of diesel generator set
It Belongs to the field of electrical automatic control of diesel generator sets, specifically involving the automatic start and fault alarm system of water jacket heaters for diesel generator sets, which includes:
1. Contact point L and contact point N are connected in series with an AC contactor, a current relay, and a water jacket heater;
2. Leakage protectors are installed between contact point L and AC contactor KM, as well as between contact point N and AC contactor;
3. The energy-saving water jacket heater of the diesel generator set fully utilizes high-precision temperature sensors to solve the problem of automatic starting at low temperatures and achieve automatic heating function. And improve the innovative circuit design scheme by adding corresponding current relays to monitor the power circuit, in order to generate sound and light alarm signals in case of circuit faults.