Fuel gas generator set waste heat utilization device

The invention discloses a fuel gas generator set waste heat utilization device which is mainly composed of a heat exchanger (1), a generator (4), a condenser (5), an evaporator (8) and an absorber (12). The heat exchanger is connected with the generator of a lithium-bromide absorption-type refrigeration machine, and a connection pipe of the lithium-bromide absorption-type refrigeration machine is connected with stop vales (2), and an outlet of a high-concentration lithium bromide solution of the generator is communicated with the absorber. The absorber is communicated with the generator through a solution pump (11) to form circulation. The condenser is connected with the evaporator through a pipe, and a connection pipe of the condenser is provided with a throttle valve (7). A water cooling pipe arranged on the absorber is communicated with a water cooling pipe arranged on the condenser, and a water freezing pipe is arranged on the evaporator. The absorber is communicated with the evaporator through a pipe. The evaporator is connected with a water pump (10) so that refrigerant is made to be sprayed circularly in the evaporator. By means of the fuel gas generator set waste heat utilization device, the energy utilization rate is increased, and the purposes of saving energy and lowering consumption are achieved.