Pre-starting heat power plant

FIELD: power industry.

SUBSTANCE: invention can be used in pre-starting and auxiliary heat power plants of vehicles for simultaneous generation of heat and the electric power. Pre-starting heat power plant for vehicles contains an internal combustion engine (1), an electric generator (2), a waste heat exchanger (3) utilising the heat of exhaust gases, a mixing device (4) with an electric heater, a liquid pump (8) with the electric drive, a check valve (5) and hydraulic lines (9), (10), (11) with heat carrier. The plant is also contains the oil pump (15) with the electric drive, the recuperative heat exchanger (18) for heating of engine oil and the oil line which is built in the oil pan with the nozzles directed towards necks of the cranked shaft and towards the oil pump of the internal combustion engine, oil hydraulic lines. The recuperative heat exchanger (18) of heating of engine oil according to the series hydraulic circuit is connected by hydraulic lines of the heat carrier to the mixing device (4) with the electric heater. The oil pump (15) with the electric drive through oil hydraulic lines supplies engine oil to the recuperative heat exchanger (18) for heating of engine oil after which heated engine oil is supplied into the oil line which is built in the oil pan with the nozzles directed towards the necks of the cranked shaft and towards the oil pump of the internal combustion engine.

EFFECT: design simplification and reduction of dimensions.

1 dwg

 

The present invention relates to the field of heat power engineering and is intended for use as pre-start and auxiliary thermal power plants, vehicles for the simultaneous production of heat and electricity.

Known thermal power plants (selected as a prototype), containing the internal combustion engine, an electric generator, a heat exchanger of heat of exhaust gases, a mixing device with a heater, a liquid pump with the actuator, check valve, valves, hose [Patent RF №2421626, IPC F02G 5/02].

The disadvantages of this heat and power installation should include the impossibility of implementing intense heating of the engine oil during the preheating of the internal combustion engine of the vehicle.

Also known preheating system of the internal combustion engine [RF Patent №2386820, IPC F01M 5/02] containing preheater, piping hot gases from pre-heater to heat the oil sump of the engine cavity with ribs on the tray for the passage of gas heater, oil pump with auxiliary actuator, the intake line of the heated oil from the crankcase chambers of the engine, connected to the suction cavity of the pump, � located along the engine block the oil pipe with nozzles, designed to crankshaft, finned tube heating, built-in oil sump.

The reason that impede the achievement of the required technical result is the presence in the oil pan finned tubes, through

which the coolant is pumped from the pre heater and the liquid chamber on the housing of the oil pump with auxiliary actuator and the cavity in the tray for the passage of hot gases from pre-heater. The presence of finned tubes, built-in oil sump, significantly reduces the reliability of the internal combustion engine, as due to the significant vibration exposure could cause destruction that will lead to mixing of engine oil and coolant pre-heater directly in the oil pan. The presence of the liquid chamber in the housing of the oil pump with independent drive will be expensive due to the complicated design. The passage of heated gases through the cavity in the tray may result in a fire engine with minor leaks of diesel fuel and motor oil. In addition is not heated oil pump of the internal combustion engine of a vehicle, before you run scored cold engine oil, representing a highly dense substance.

From in�it said above it is the preheating system of the internal combustion engine has extremely many shortcomings, which ultimately reduces the reliability and increases the cost.

The object of this invention is to provide a pre-heat and power installation with simple structure, higher efficiency and small dimensions.

The problem is solved as follows: in the pre-heat and power plant for the vehicle containing the internal combustion engine, an electric generator, a heat exchanger of heat of exhaust gases, a mixing device with a heater, a liquid pump with the actuator, check valve, coolant hose, oil pump with electric drive, regenerative heat exchanger, engine oil, built-in oil pan oil pipe with nozzles aimed at the crankshaft and the oil pump of the internal combustion engine, an oil hose, a regenerative heat exchanger engine oil in the hydraulic circuit serial is connected by a hose coolant to the mixing device with the electric heater, oil pump drive oil through the brake hose takes the engine oil to the regenerative Teploobmennik�ku heating engine oil, after which the heated engine oil is supplied to the built-in oil sump oil pipeline with nozzles aimed at the crankshaft and the oil pump of the internal combustion engine.

Fig. 1 shows a diagram of the pre-heat and power plants.

Pre-heat and power plant comprises an internal combustion engine 1 is connected to an electric generator 2, the heat exchanger of heat of exhaust gas 3, the mixing device 4, check valve 5, electrically-controlled valves 6 and 7, the liquid pump with the actuator 8, the brake hose of the coolant 9, the coolant inlet to the engine cooling system of the vehicle, the brake hose 10, the discharge coolant from the cooling system of the motor vehicle, the brake hose 11, the inlet coolant to the radiator of a heater of the vehicle, the brake hose 12, the outlet coolant from the radiator of vehicle heating system for supplying exhaust gas to the heat exchanger-the heat exchanger 13, oil brake cable 14, and a discharge motor oil from the oil sump (Fig. 1, shown with dashed lines), oil pump with electric motor 15, an oil-16 brake hose, engine oil inlet to the built-in oil sump oil pipeline with nozzles aimed at Shea�and crankshaft and oil pump of the internal combustion engine of the vehicle 17, regenerative heat exchanger engine oil 18.

Pre-heat and power plant operates as follows.

During operation of the internal combustion engine 1 (Fig. 1) power generator 2 generates electricity that is intended for consumers of the onboard systems of the vehicle (primarily to charge its batteries), the power of the liquid pump with the actuator 8, an oil pump with electric motor 15 and the power of the electric heater in the mixing device 4. The liquid pump 8, the motor delivers the coolant to the cooling system of the internal combustion engine 1 and the fluid circuit of the heat exchanger-the heat exchanger exhaust gas heat 3. After that, the flow of coolant, utilitybase the warmth of the cooling system of the engine 1 and the exhaust gases enter the mixing device 4. In a mixing device flows of coolants are mixed. The mixing device is provided with a heater that is intended for additional heating of the coolant. This heater controls the automatic control system, which includes its achievements in the ambient air temperature is -5°C. After mixing the coolant is directed through line 11 to the radiator�ru-vehicle heater, and then on line 12 is diverted from him. If the ambient air temperature is above -10°C, the crane 6 is open and the valve 7 is closed (Fig. 1), thus not allowed the flow of the coolant in the cooling system of an internal combustion engine of the vehicle via a hydraulic line 9. When the ambient temperature is below -10°C, and in cases where forced warming up of the internal combustion engine of a vehicle, the automatic control system opens the valve 7 (Fig. 1), providing a flow of heated coolant to the brake cable 9. Flowing through hose 9, the first coolant is supplied to your circuit regenerative heat exchanger engine oil 18 and further to the cooling system of an internal combustion engine of the vehicle, warming him. Oil pump with motor 15 motor oil in the oil line 14 is supplied to the oil circuit of the regenerative heat exchanger engine oil 18, where heat from the coolant. After a recuperative heat exchanger engine oil 18 is heated by the engine oil oil hose 16 is supplied to the built-in oil sump oil pipeline with nozzles aimed at the crankshaft and the oil pump of the internal combustion engine transport CP�of DSTV 17. Irrigating heated engine oil to crankshaft and oil pump of the internal combustion engine of the vehicle is warming up. On the brake hose 10 is the discharge of coolant from the cooling system of an internal combustion engine of the vehicle to the liquid pump with the actuator 8. Further, the above cycle is repeated.

When the work of thermal power plants for the sole purpose of power generation, crane 6 is blocked, and the valve 7 (Fig.1) is opened, allowing, thus, the movement of coolant through the cooling system of the vehicle via the hose 9 and 10, where is the dissipation of heat into the environment through his radiator. In the above mode, the oil pump with the electric drive 15 is not working, and the heater mixing device is disabled.

During operation of the vehicle engine, the valve 7 is open and the check valve 5 allows the passage of fluid through the hydraulic lines 10 through heat and power installation and the hydraulic lines 11 and 12 through the radiator of a heater of the vehicle.

Declared pre-operational thermal power plants can be used as auxiliary power systems on heavy duty vehicles, agricultural�'s machines road construction machines, diesel locomotives for the production of thermal and electric energy. Its application will improve the effectiveness of the system of prestarting heating of the vehicle by warming up his coolant and engine oil to provide thermal and electrical energy during long stops in the cold season, and to expand service capabilities when used in any climatic conditions.

Pre-heat and power plant for the vehicle containing the internal combustion engine, an electric generator, a heat exchanger of heat of exhaust gases, a mixing device with a heater, a liquid pump with the actuator, check valve, hose of the coolant, characterized in that it further comprises an oil pump with electric drive, regenerative heat exchanger, engine oil, built-in oil pan oil pipe with nozzles aimed at the crankshaft and the oil pump of the internal combustion engine, oil hose, wherein the regenerative heat exchanger engine oil in the hydraulic circuit serial is connected by a hose coolant to the mixing device with the electric heater, oil pump � electric oil through a hydraulic line delivers the engine oil to the regenerative heat exchanger, engine oil, after which the heated engine oil is supplied to the built-in oil sump oil pipeline with nozzles aimed at the crankshaft and the oil pump of the internal combustion engine.



 

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