Method and system for preventing and treating pests using smoke from biomass power plant

Abstract

A system for pest control in a confined space using flue gas from a biomass power plant is disclosed. The system contains a flue gas treatment device including a discharge pipe; a storage tank of treated flue gas; a control unit; a first regulating valve; a first pressure monitoring sensor; a carbon dioxide concentration monitoring sensor; and a first atmospheric valve.

The invention claimed is: 
     
         1 . A system for pest control in a confined space using flue gas from a biomass power plant, the system comprising:
 a flue gas treatment device comprising a discharge pipe;   a storage tank of treated flue gas;   a control unit;   a first regulating valve;   a first pressure monitoring sensor;   a carbon dioxide concentration monitoring sensor; and   a first atmospheric valve; wherein:   the discharge pipe is connected to the storage tank of the treated flue gas, and the storage tank of the treated flue gas is connected to the confined space;   the first regulating valve is disposed on a pipe between the storage tank of the treated flue gas and the confined space;   the first pressure monitoring sensor and the carbon dioxide concentration monitoring sensor are disposed inside the confined space;   the first atmospheric valve is disposed on a pipe connected to the confined space;   the control unit is connected to the first pressure monitoring sensor and the carbon dioxide concentration monitoring sensor for receiving detection signals therefrom; and   the control unit is connected to the first regulating valve and the first atmospheric valve for controlling opening degrees thereof, whereby regulating ranges of a pressure and a concentration of carbon dioxide in the confined space.   
     
     
         2 . The system of  claim 1 , wherein the flue gas treatment device comprises: a gas-liquid separation device, a gas compression device, and a pressure-swing absorption device; wherein:
 the pressure-swing absorption device comprises a plurality of parallel absorption towers; each absorption tower is packed with a carbon dioxide selective absorbent; a top of each absorption tower is provided with a second atmospheric valve, and a bottom of each absorption tower is provided with a charging branch pipe and a discharging branch pipe; each charging branch pipe is provided with a charging regulating valve and all charging branch pipes are connected to form a charging main pipe; each discharging branch pipe is provided with a discharging regulating valve and all discharging branch pipes are connected to form a discharging main pipe;   a gas outlet of the gas-liquid separation device is connected to the gas compression device;   the gas compression device is connected to the charging main pipe of the pressure-swing absorption device; and   the discharging main pipe of the pressure-swing absorption device is connected to the storage tank of the treated flue gas.   
     
     
         3 . The system of  claim 1 , wherein the storage tank of the treated flue gas is provided with a second pressure monitoring sensor and a second regulating valve; the control unit is connected to the second pressure monitoring sensor for receiving a detection signal therefrom and is connected to the second regulating valve for controlling a pressure at an outlet of the storage tank of the treated flue gas to reach a set pressure. 
     
     
         4 . The system of  claim 1 , further comprising a temperature monitoring sensor, wherein the temperature monitoring sensor is disposed in the confined space and is connected to the control unit for monitoring a temperature in the confined space.