DISTRIBUTED COMBINED COOLING, HEATING AND POWER GENERATING APPARATUS AND METHOD WITH INTERNAL COMBUSTION ENGINE BY COMBINING SOLAR ENERGY AND ALTERNATIVE FUEL

摘要

The present invention provides a distributed combined cooling, heating and power generating apparatus with an internal combustion engine by combining solar energy and alternative fuel and a method thereof, the apparatus comprising: an energy storage system for combined reaction between solar energy and alternative fuel, a solar fuel internal combustion engine generating system, a lithium bromide refrigeration system for absorbing exhaust heat of flue gas of solar fuel, a reaction device for recovering exhaust heat of flue gas, a heat exchanger for recovering exhaust heat of exhaust gas and a cylinder jacket and water plate heat exchanger. According to the present invention, solar energy is combined with alternative fuel to achieve conversion of solar energy to fuel chemical energy, such that solar energy is stored in form of synthesis gas fuel and combined with the combined cooling, heating and power generating system, which possesses high energy storing intensity, includes small volume of storing device, and achieve the objects of cooling, heating and power combination in low cost and high efficiency, thereby effectively solving the problem of difficulty in storage, and high cost and low efficiency in usage.

主权项

1. A distributed combined cooling, heating and power generating apparatus with an internal combustion engine by combining solar energy and alternative fuel, comprising:
an energy storage system for combined reaction between solar energy and alternative fuel, a solar fuel internal combustion engine generating system, a lithium bromide refrigeration system for absorbing exhaust heat of flue gas of solar fuel, a reaction device for recovering exhaust heat of flue gas, a heat exchanger for recovering exhaust heat of exhaust gas and a cylinder jacket and water plate heat exchanger, wherein the energy storage system for combined reaction between solar energy and alternative fuel is configured to use a trough-type optical collector to concentrate and project solar radiation to a tubular heat absorbing reactor arranged along a focus line of the trough-type optical collector, so as to drive a decomposition or reform reaction of alternative fuel in the tubular heat absorbing reactor into solar fuel; the solar fuel internal combustion engine generating system includes a fuel gas internal combustion engine and a generator, in which the solar fuel produced by the energy storage system for combined reaction between solar energy and alternative fuel is provided to directly drive the fuel gas internal combustion engine for generating power, burnt in cylinder of the fuel gas internal combustion engine, thereby releasing high-temperature heat, and transformed to electrical energy through transformation process via the generator to be outputted; the lithium bromide refrigeration system for absorbing exhaust heat of flue gas of solar fuel includes a flue gas heat exchanger and a steam dual effect lithium bromide refrigeration unit, in which the exhaust heat of the flue gas generated from the solar fuel burning in the internal combustion engine is used for generating steam through the flue gas heat exchanger and driving the steam dual effect lithium bromide refrigeration unit to refrigerate and to be outputted; the reaction device for recovering exhaust heat of flue gas is configured such that, both the flue gas discharged by the internal combustion engine and the alternative fuel preheated by the preheating evaporator, in case the solar energy irradiation is insufficient or it is overcast or rain, are passed to the reaction device for recovering exhaust heat of flue gas, in which exhaust heat of the flue gas is provided as reaction heat for conversion of the alternative fuel to hydrogen-rich fuel, so as to make alternative fuel completely be transformed to hydrogen-rich fuel and passed to the internal combustion engine, and the remaining flue gas are respectively passed to the flue gas heat exchanger and the heat exchanger for recovering exhaust heat of exhaust gas; the heat exchanger for recovering exhaust heat of exhaust gas is configured such that the steam generated by the flue gas heat exchanger and the flue gas transferred from the reaction device for recovering exhaust heat of flue gas are used to heat feedwater to produce domestic hot water; and the cylinder jacket and water plate heat exchanger is configured such that the cylinder jacket water of the internal combustion engine is used to heat feedwater through the cylinder jacket and water plate heat exchanger to produce domestic hot water, which is also provided to the preheating evaporator.