In the northern or western plateau region of China in winter, due to the low ambient temperature, the construction machinery air compressor is difficult to start. The main reason is that the air temperature of the cylinder of the diesel engine air compressor does not reach the temperature required for starting, and the pressure of the compressed air in the cylinder is also significantly lower than the pressure required for starting; the optimal working temperature of the battery is 20-40 °C. As the ambient temperature decreases, its output capacity also decreases accordingly, resulting in a decrease in the power of the diesel engine air compressor start system; when the ambient temperature is low, the viscosity of the oil becomes larger, and the resistance between the frictions increases, so that the diesel air compressor The starting speed decreases, at the same time, the viscosity of the diesel oil increases, the quality of the spray atomization deteriorates, and the ignition lag period is prolonged; the air density and the oxygen content in the air decrease with the increase of the altitude, and the altitude is higher, the diesel engine air pressure The harder it is to start.
Under low temperature conditions, in order to ensure that all types of construction machinery can be safely put into use under cold conditions, daily maintenance should be done, and it is best to install a low temperature auxiliary starting system.
Common low-temperature start-up methods: (1) Select low-performance diesel engine air compressor oil. This type of air compressor oil has low temperature viscosity, good lubrication between friction pairs, and low starting resistance, which is good for starting. The multi-stage oil currently used, such as the number before 15W/40W, the better the low-temperature fluidity of the oil. Therefore, it is recommended to use 10W or 5W oil at low temperatures.
(2) Using a battery with good low temperature performance, if necessary, the battery can be insulated to ensure that it can be charged normally under low temperature conditions and has sufficient output current, thereby improving the power of the starting system.
(3) Filling cold starter liquid (4) Flame preheating start (5) Circulating water heating system (also called fuel heater heating system) (Land) Other preheating methods In addition to the above preheating method, heat can also be used Various methods such as water preheating, steam preheating, and electric preheating are used for low temperature start-up.
Stainless steel
thick-film heating tubes of GIDAPE®ANDETONG® series
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JIEDA larger than 3300w thick
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This type of
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At present, thick
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Larger Than 3300W Heating Element
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XINXIANG JIEDA PRECISION ELECTRONICS CO.,LTD , http://www.gidaheater.com