Automatic biomass gas feeding and diffusing control system and biomass gasification reaction system

Abstract

The invention discloses an automatic biomass gas feeding and diffusing control system. The system comprises a first level gage of a work bin, a second level gage of the work bin, a valve control unit, a furnace temperature sensor, a furnace pressure sensor, a furnace front feeding device control unit, a flame detector and an ignition control unit, wherein the first level gage is used for sensing low material level in the work bin and transmitting a low material level signal to the valve control unit; the second level gage is used for sensing high material level in the work bin and transmitting a high material level signal to the valve control unit; the valve control unit is used for controlling the opening and closing of valves of a buffer bin and the work bin according to the received signals; the furnace temperature sensor is used for sensing temperature in a fluidized bed gasification reactor and transmitting a temperature signal to the furnace front feeding device control unit; the furnace pressure sensor is used for sensing pressure in the fluidized bed gasification reactor and transmitting a pressure signal to the furnace front feeding device control unit; the furnace front feeding device control unit is used for controlling the feeding frequency of a furnace front feeding device according to the received signals; the flame detector is used for sensing the flame of a diffusing device and transmitting a signal indicating whether the diffusing device has the flame or not to the ignition control unit; and the ignition control unit is used for controlling the opening of an ignition device according to the received signal.

Description

technical field [0001] The invention relates to an automatic control system for the release of biomass gas feed material and a biomass gasification reaction system using the control system. Background technique [0002] Biomass gasification has a history of more than one hundred years. The original gasification reactor was produced in 1883. It used charcoal as a raw material, and the gasified gas drove an internal combustion engine. During the Second World War, Germany vigorously developed the on-board carburetor for civilian cars, and formed a complete technology supporting the car engine. At that time, biomass gasification mainly used fixed-bed gasification reactors, and its technical level reached a fairly perfect level. [0003] Biomass gasification refers to the processing of biomass raw materials, then sent to the gasifier, gasification and cracking under the condition of anoxic, to obtain combustible gas, and sometimes according to the application needs to purify th...

AI Technical Summary

Problems solved by technology

[0010] (1) The gasification efficiency of the gasifier is low

Biomass raw materials cannot be gasified well, the energy utilization rate is low, energy waste is serious, and it is easy to cause more ash and slagging in the gasifier;

[0011] (2) Gas calorific value is low

The lower calorific value not only increases the cost of gas storage, but also increases the gas consumption per household, which increases user expenditure and limits the enthusiasm of users for gas consumption;

[0012] (3) High impurity content

Tar and dust deposits are serious, and the centralized gas supply system cannot operate safely for a long time

Not only did it affect the continuity of production, but it also caused flames to rise up in the factory building, and the pipeline formed a negative pressure backfire explosion;

[0013] (4) Secondary pollution problem

They pose a hazard to the growth and safety of animals and plants, thus causing secondary pollution

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