Mine area distributed combined cooling heating power energy system for extracting gas for coal mine

A distributed combined cooling, heating and power energy system for gas extraction in a coal mining area, comprising:

• a gas extraction pump station, a gas storage tank, a water-sealing flame arrester, a wire mesh filter, a first pipeline flame arrester, a wet-type bleeding valve, a cyclone dehydrator, a second pipeline flame arrester, a proportioning mixer, a gas power machine, a first power generator, a waste heat boiler, a steam power machine, a second power generator, a condenser, a water storage tank, a pressurizing pump, a waste heat-type double-effect lithium bromide absorption water chiller/heater unit, and a gas-type double-effect lithium bromide absorption water chiller/heater unit;
• the gas extraction pump station, the gas storage tank, the water-sealing flame arrester, the wire mesh filter, the first pipeline flame arrester, the wet-type bleeding valve and the cyclone dehydrator are sequentially connected;
• an outlet of the cyclone dehydrator is divided into two branches, one branch is sequentially connected with the second pipeline flame arrester, the proportioning mixer, the gas power machine, the waste heat boiler and the waste heat-type double-effect lithium bromide absorption water chiller/heater unit, and the other branch is connected with the gas-type double-effect lithium bromide absorption water chiller/heater unit;
• the first power generator is connected with the gas power machine and is driven by the gas power machine to generate power, an outlet of the water storage tank is connected with the pressurizing pump, the working substance (water) is pressurized by the pressurizing pump and flows into the waste heat boiler, the high-pressure steam generated by the waste heat boiler drives the steam power machine, and then the high-pressure steam is condensed by the condenser and returns to the water storage tank, the condenser is cooled by cooling water;
• the second power generator is connected with the steam power machine and driven by the steam power machine to generate power, and cold/hot water of the waste heat-type double-effect lithium bromide absorption water chiller/heater unit and the gas-type double-effect lithium bromide absorption water chiller/heater unit is delivered through an energy supply pipeline to users after being collected and mixed.