Waste heat recovery system of generator

Abstract

The invention discloses a waste heat recovery system of a generator. The waste heat recovery system of the generator comprises an insulating water tank, an air-water heat exchange assembly, a water-water heat exchange assembly and a controller, wherein the air-water heat exchange assembly comprises an air-water heat exchanger arranged in the insulating water tank; the air-water heat exchanger is used for recycling waste heat of exhaust gas of the generator; the water-water heat exchange assembly comprises a generator water-cooling pipeline, a heat exchange branch and a heat dissipation branch; the heat exchange branch and the heat dissipation branch are connected between a water returning section and a water outlet section of the generator water-cooling pipeline in parallel; the heat exchange branch comprises a first solenoid valve and a water-water heat exchanger which are connected in series; the water-water heat exchanger is arranged in the insulating water tank; the heat dissipation branch comprises a second solenoid valve and a heat dissipation water tank which are connected in series; the generator water-cooling pipeline is provided with a temperature sensor; a first delivery pump is arranged on the water outlet section of the generator water-cooling pipeline; and the controller is used for controlling the first delivery pump, the first solenoid valve and the second solenoid valve according to signals of the temperature sensor, so that the first delivery pump, the first solenoid valve and the second solenoid valve act according to preset commands. The recovery system is simple in structure and low in cost; and used equipment is common equipment and is convenient to maintain.

Description

technical field [0001] The invention relates to the technical field of generators, in particular to a generator waste heat recovery system. Background technique [0002] As we all know, the thermal efficiency of various gas fuel engines (power) in the world is mostly 30% to 40%, that is to say, except a small part of the fuel energy of the engine is used for doing work and generating power, most of the rest is turned into heat energy. Lost into the atmosphere, wasted. [0003] To this end, various countries have developed various types of waste heat recovery devices. Since the engine is usually used in the automotive field, it has the particularity of movement, and there is no good waste heat recovery and utilization scheme. Therefore, the current waste heat recovery systems are mainly concentrated in Generator power field. Waste heat recovery in the field of generators has been applied abroad, and the technology is becoming more and more mature, but it is still in its inf...

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Problems solved by technology

[0002] As we all know, the thermal efficiency of various gas fuel engines (power) in the world is mostly 30% to 40%, that is to say, except a small part of the fuel energy of the engine is used for doing work and generating power, most of the rest is turned into heat energy. Lost into the atmosphere, wasted

[0003] To this end, various countries have developed various types of waste heat recovery devices. Since the engine is usually used in the automotive field, it has the particularity of movement, and there is no good waste heat recovery and utilization scheme. Therefore, the current waste heat recovery systems are mainly concentrated in Generator power field

Waste heat recovery in the field of generators has been applied abroad, and the technology is becoming more and more mature, but it is still in its infancy in China, and there are few applications in various industries. Some companies have introduced foreign systems, and the results are mostly unsatisfactory.

The reason is that the foreign system does not adapt to the national conditions, not only the equipment price is high, the maintenance is relatively complicated, but also the quality requirements of the maintenance personnel are correspondingly high

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