vehicles for maintenance and repair of city roads

Asfaltorazogrevatel DOE-2

April 13, 2009 | Categories: Vacuum machine KO-705ANM

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Asfaltorazogrevatel DOE-2

Asfaltorazogrevatel DE-2 on the a vehicle UAZ-451DM consists of a creeper with arms control, body, LPG ​​installations, communication, power burners with infrared gas burners such as TIG-1, the lifting mechanism block burners, and electrical equipment.

In order to improve the quality of work, reducing the time of heating and gas flow rate on asfaltorazogrevatelyah establish a system of automatic regulation (SAR) of the process of heating surface. Such a system is installed on the X-ray emitting asfaltorazogrevatele - model 4109. Special it - hinged on a wheeled tractor MTZ-50. Block burners installed in front of the tractor on the frame, lifted into the transport position by means of hydraulic cylinder and chain drive. Rear of the tractor (in a special metal cabinet) set five cylinders with liquefied gas. Up and down the block with hydraulic control valve of the tractor. If necessary, the unit can be moved manually to the rinks (at a distance of 200 mm to the right or left). On a frame block burners installed SAR sensor, which is in the position rests on the hottest His actuator - solenoid valve - mounted on the frame unit burners. It changes the amount of gas fed to the radiators. In the initial period of heating CAP provides an intense increase in temperature on the surface of the coating due to supply to the burners of gas under high pressure - 0,004-0,0045 MPa. When the temperature on the surface of the pavement 170-250 ° C actuator system automatically reduces the SAR (pressure) of gas to a level at which the constant temperature of heated pavement.

One of the main elements of the above types asfaltorazogrevateley - gas burner is infrared radiation. Gas burners may be a ceramic or metal radiator. The gas from the nozzle enters the ejector-mixer, which acts as a jet of gas ejected air from the atmosphere. The mixture of gas and air takes place in the junction box and comes out at a rate of 0,1-0,14 m / s channels through the radiator out. At a special ignition igniters coming out of the radiator gas-air mixture is burned on the surface of the radiator in a thin layer, passing it the bulk of the heat of combustion products. The emitter is heated to a temperature of 850-900 ° C and becomes a source of infrared radiation (heat) rays.



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