Supercharging waste heat recycling system for internal combustion engine
A technology of waste heat recovery system and turbocharging system, which is applied to internal combustion piston engines, combustion engines, mechanical equipment, etc., can solve the problems of limited water waste heat energy recovery direction and the lack of a substantial and effective way for intercoolers.
Active Publication Date: 2016-01-13
TSINGHUA UNIV
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Problems solved by technology
The amount of heat taken away by the intercooler is considerable, but the existing research on waste heat recovery of internal combustion engines is mostly limited to the direction of exhaust energy and cylinder jacket water waste heat energy recovery, and there is no substantial and effective method for the intercooler.
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[0024] The supercharging waste heat recovery system of the internal combustion engine according to the present invention will be described in detail below with reference to the accompanying drawings.
[0025] The following detailed description describes exemplary embodiments and is not intended to be limited to the expressly disclosed combinations. Accordingly, unless otherwise stated, various features disclosed herein may be combined together to form additional combinations not shown for the sake of brevity.
[0026] refer to Figure 1 to Figure 4 , the supercharging waste heat recovery system of internal combustion engine according to the present invention comprises: k turbochargers T 1 , T 2 ,...,T k , where the i-th turbocharger T i with the i-th expansion end TE i and the ith compression end TC i , the i-th expansion end TE i The kinetic energy of the exhaust gas discharged from the exhaust valve 3011 of the corresponding cylinder 301 of the internal combustion eng...
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The invention provides a supercharging waste heat recycling system for an internal combustion engine. The supercharging waste heat recycling system comprises k turbochargers, k heat exchangers, an organic working medium pump, an expansion machine, an electric generator and a condenser. The ith turbocharger is provided with the ith expansion end and the ith compression end, power of exhaust gas exhausted by an exhaust valve of a corresponding cylinder of the internal combustion engine is used by the ith expansion end for compressing supplied air input in the ith compression end and compressed air is output; the ith heat exchanger is communicated with the ith compression end of the ith turbocharger; the organic working medium pump is communicated with an outer organic working medium storage tank and the k heat exchangers are arranged on the downstream of the organic working medium pump and controlled to be communicated with the organic working medium pump; the expansion machine is arranged on the downstream of all the k heat exchangers and controlled to be communicated with the k heat exchangers; the electric generator is controlled to be communicated with an outer power supply or energy storage device and controlled to be communicated with the expansion machine; and the condenser is arranged on the downstream of the expansion machine and controlled to be communicated with the outer organic working medium storage tank. By the adoption of the supercharging waste heat recycling system, the total energy use efficiency of the internal combustion engine can be improved.
Description
[0001] This application is a divisional application of the original invention patent application (application date is December 30, 2014, application number is 201410841618.0, and the title of the invention is "supercharged waste heat recovery system for internal combustion engine"). technical field [0002] The invention relates to the field of waste heat utilization of internal combustion engines, in particular to a supercharging waste heat recovery system of internal combustion engines. Background technique [0003] In the internal combustion engine turbocharging system, in order to reduce the inlet air temperature of the internal combustion engine, an intercooler is required to cool down, and the air energy taken away by the intercooler has not been effectively recovered. In internal combustion engine mechanical devices that require a high pressure ratio, multi-stage supercharging is often required to achieve the air supercharging effect. The heat taken away by the interc...
Claims
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IPC IPC(8): F02G5/00F01K25/08
CPCF01K25/08F02G5/00Y02T10/12
Inventor 张扬军诸葛伟林李志勇李辉彭杰王恩华刘芙蓉赵春华
Owner TSINGHUA UNIV