Do you know how the biogas generators used in farms work, and what is the system composition? The power output operation mode of the biogas power generation system includes: independent operation-the biogas power generation system operates independently to supply power to the load. Grid-connected operation-the power sent out is transmitted to the public grid, and emergency operation-as a backup power source, it runs and supplies power when the main grid is out of power. Huaquan Power introduces the composition of the biogas generator system for farms!
1. Biogas desulfurization and voltage stabilization, explosion-proof device:
The biogas used for the engine must first pass through the desulfurization device to reduce the corrosion of hydrogen sulfide to the engine. A voltage stabilizing device is installed on the biogas intake pipeline to facilitate the adjustment of the flow rate to achieve a suitable air-fuel ratio. In addition, to prevent backfire in the intake pipe, anti-backfire and explosion-proof devices should be installed on the biogas main pipe.
The desulfurization and dehydration of biogas must be done well, and high-efficiency industrial desulfurizers must be used, and they must be replaced in time. The sulfur capacity of the good iron oxide desulfurizers currently on the market is about 15%. When treating farm biogas, the desulfurizer has a service life of about 1500 hours and must be replaced when it expires.
2. Air intake regulation system:
On the intake manifold, a set of precise and sensitive gas mixers should be installed to adjust the mixing ratio of air and biogas.
3. Engine ignition system:
The combustion speed of biogas is slow. The ignition system of engines that originally used gasoline, diesel and natural gas should be modified to improve combustion efficiency, reduce post-combustion phenomena, and extend operating life.
4. Speed control system:
If the farm uses a biogas generator to operate independently, that is, it runs with the electric equipment as the load. The incorporation and unloading of the electric equipment will cause the load of the generator to fluctuate. In order to ensure the normal operation of the generator set, the farm uses the biogas generator. The speed control system is indispensable.
5. Preheating utilization system:
The preheat utilization device is used to utilize the heat in the engine cooling water and exhaust gas to improve the energy utilization efficiency of biogas.
6. Grid-connected control system:
Mainly include generator voltage regulation circuit, automatic quasi-synchronization parallel control circuit, manual parallel and de-parallel control circuit, measurement circuit, gas engine and auxiliary equipment control circuit, etc.
Post time: Sep-08-2021