Comprehensive Utilization System of Waste Heat of Internal Combustion Engine

An internal combustion engine and waste heat technology, applied in heat recovery systems, internal combustion piston engines, combustion engines, etc., can solve the problems of low power generation efficiency and loss, achieve good operating economy and improve the comprehensive utilization efficiency of waste heat

Active Publication Date: 2016-02-03
DINGLI SHICHUANG INTELLIGENT CONTROL TECH BEIJING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The organic Rankine cycle can make good use of the waste heat of the flue gas to generate electricity, but the power generation efficiency of the organic working medium Rankine cycle system is low, and most of the heat is lost through the condenser of the organic working medium Rankine cycle system. efficient way to recycle

Method used

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  • Comprehensive Utilization System of Waste Heat of Internal Combustion Engine
  • Comprehensive Utilization System of Waste Heat of Internal Combustion Engine

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Embodiment Construction

[0041] The waste heat comprehensive utilization system of the internal combustion engine according to the present invention will be described in detail below with reference to the accompanying drawings.

[0042] refer to figure 1 and figure 2 , according to the waste heat comprehensive utilization system of internal combustion engine of the present invention comprises: organic working medium pump 10, communicates with the external organic working medium liquid storage tank (not shown); And communicate with the organic working medium pump 10; the expander 12 is arranged downstream of the first heat exchanger 11 and communicates with the first heat exchanger 11; the second heat exchanger 13 is arranged downstream of the expander 12 and communicates with the expander 12 And communicate with said liquid organic working medium liquid storage tank; Generator 14, connect (for example directly) expander 12 and connect external power supply or energy storage device; Water inlet pipe ...

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Abstract

The invention provides a comprehensive waste heat utilization system of an internal combustion engine. The system comprises an organic working medium pump, a first heat exchanger, an expansion machine, a second heat exchanger, a generator, a water inlet pipe, a water outlet pipe, a cooling water pump, a first stop valve, a first cooling tower, a second stop valve, a first inlet pipe, an absorption type heat pump unit, a first outlet pipe, a flue gas waste-heat heat exchanger, a flue gas emission pipeline, a fluid circulation inlet pipe, a fluid circulation outlet pipe, a third stop valve, a second outlet pipe and a fluid pump. The flue gas waste-heat heat exchanger and the absorption type heat pump unit are used for recovering waste heat of flue gas emitted by the internal combustion engine and waste heat of cooling water of the internal combustion engine for heating organic working medium, and the organic working medium is enabled to evaporate to overheating gaseous organic working medium under pressure for driving the expansion machine to act. Based on Rankine cycle of the organic working medium, waste heat energy of the internal combustion engine is recovered comprehensively, and comprehensive waste heat utilization efficiency of the internal combustion engine and power generation efficiency of an organic working medium Rankine cycle system can be improved.

Description

technical field [0001] The invention relates to the field of waste heat utilization of internal combustion engines, in particular to a comprehensive utilization system of waste heat of internal combustion engines. Background technique [0002] Internal combustion engine generator sets are widely used in engineering practice because of their miniaturization and portability. However, the actual power generation efficiency of the internal combustion engine generating set is at 40%, and a large amount of heat is lost to the outside in the form of flue gas discharge and cooling water circulation. Due to the low power level of a single internal combustion engine module, the waste heat of the internal combustion engine is mostly used for heating or cooling at this stage. Part of the solution is to combine the waste heat of multiple internal combustion engines to generate electricity. [0003] The waste heat of internal combustion engine flue gas has a high temperature. If it is d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01K25/08F01K23/04F01K23/10F01N5/02F02B41/00
CPCY02B30/52Y02T10/12
Inventor 李志勇刘国利张明柱
Owner DINGLI SHICHUANG INTELLIGENT CONTROL TECH BEIJING CO LTD
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