Pneumatic comprehensive utilization device of residual energy of exhaust gases
A residual energy and waste gas technology, applied in combustion engines, machines/engines, internal combustion piston engines, etc., can solve the problems of high cost, poor effectiveness, low energy recovery rate, etc., to achieve less energy conversion times, large recovery share, structure simple effect
Inactive Publication Date: 2011-11-09
JILIN UNIV
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Problems solved by technology
Considering the purpose and technical status of the vehicle engine, the effectiveness of absorption refrigeration and direct utilization of heat energy is poor. At the same time, the efficiency of the Rankine cycle power generation method is very low, and the system is relatively complex
Thermoelectric power generation is still in the stage of principle research. Due to the high cost of thermoelectric power generation materials, the energy recovery rate is very low.
Method used
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Embodiment Construction
[0017] The following is attached figure 1 The technical scheme of the present invention is further elaborated:
[0018] When the engine 1 is running, the exhaust gas sensor 6 can detect the exhaust state of the engine, and the working condition sensor 2 can detect the working condition of the engine, and send it to the controller 35. According to a specific judgment principle, the controller 35 controls the amount of exhaust gas passing through the residual gas power turbine 8 through the proportional control valve 7, and the residual gas power turbine 8 realizes a rotational movement. The residual gas power turbine 8 transmits the rotational motion to the compressor 10 through the transmission mechanism 9. The compressor 10 compresses the gas in the original machine's intake pipe 11 to a medium pressure and enters the intake manifold 4. The controllable supercharging mechanism 13 regulates The gas volume of the intake manifold 4 is increased to high pressure and delivered to th...
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The invention relates to a pneumatic comprehensive utilization device of residual energy of exhaust gases, belonging to the field of energy recovery of engine exhaust gases. In the invention, a controller is respectively connected with an engine working condition sensing subsystem, a residual gas power turbine pneumatic energy recovery subsystem, a pneumatic energy storage-conversion subsystem and a Rankine cycle pneumatic energy recovery subsystem, wherein the residual power turbine pneumatic energy recovery subsystem and the Rankine cycle pneumatic energy recovery subsystem can be both independently connected with the engine working condition sensing subsystem and the pneumatic energy storage-conversion subsystem in series to form an independent pneumatic type waste gas energy recovery system. The invention has the advantages of high energy recovery ratio by simultaneously utilizing the enthalpy of residual gases and the heat energy of waste gases, larger recovery portion and less energy conversion frequency by taking high pressure air as an energy conversion carrier, simple structure and fewer changes to an engine system and can conveniently realize the complementary energy recovery and the mechanical energy utilization of the engine.
Description
Technical field [0001] The invention belongs to the technical field of engine exhaust energy recovery, and specifically relates to a device in which engine exhaust energy generates high-pressure air through a residual gas power turbine and a Rankine cycle power turbine, and converts it into mechanical energy in a pneumatic form. Background technique [0002] With the rapid development of my country's economy, energy shortages have become increasingly serious, and energy conservation has become a common concern of all countries. As the main energy oil, the contradiction between supply and demand is particularly prominent. Therefore, for the automotive industry, how to reduce fuel consumption and save costs has become a research hotspot and frontier. [0003] The high-temperature exhaust gas discharged by the engine takes away the heat energy equivalent to the effective power. Even if part of this energy is used, it can greatly improve the economy of the diesel engine. Research in t...
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IPC IPC(8): F02B41/10F02B37/00
CPCY02T10/166Y02T10/144Y02T10/163Y02T10/12
Inventor 韩永强刘忠长孙文旭田径许允杨冬李庆华王忠恕
Owner JILIN UNIV