Heating and descaling device of strengthening and stabilizing biogas output

Abstract

The invention provides a heating and descaling device of strengthening and stabilizing biogas output. The device comprises a biogas heating device, a heat exchange device, a descaling device and a driving device. The heat exchange device is composed of a plurality of heat exchange pipes and a transverse main pipe for positioning; the descaling device comprises an articulated crank mechanism and a descaling assembly which comprises parallelly mounted descaling ring plates, descaling rings are arranged under the descaling ring plates; quantity of the descaling rings on the descaling ring plates are the same with the quantity of the heat exchange pipes, axis of the descaling rings coincides with the heat exchange pipes, and a distance between centers of two descaling ring is the same with a distance between centers of two heat exchange pipes. By using the device provided by the invention, a reaction temperature of a biogas slurry can be increased, so that an biogas output tends to be high-yielding and stable; and meanwhile, an automatic starting of the descaling device can be realized so as to automatically remove sediment incrustation deposited on the heat exchange pipes, thereby ensuring cleanness of the heat exchange pipes, having a good heat transfer efficiency, and realizing an improvement of a whole heat exchange efficiency by 38.0-47.0 %.

Description

technical field [0001] The invention belongs to a heating and descaling device for strengthening and stabilizing biogas output. Background technique [0002] Biogas is a clean fuel with excellent performance. It not only has rich sources of raw materials and low price, but also has the characteristics of high combustion thermal efficiency, low cost, green, low emission, renewable and good anti-knock performance. It is a high-quality biomass energy. However, the fermentation speed and biogas output of traditional biogas fermentation tanks for biogas production are greatly affected by the ambient temperature, and the gas production operation of the system is unstable. The output difference between winter and summer is obvious, and even gas cannot be produced in severe cold. Due to various reasons, most of the traditional biogas digesters do not have supporting heating facilities, resulting in a serious decline in biogas production or even shutdown in a low temperature environm...

AI Technical Summary

Problems solved by technology

However, the fermentation speed and biogas output of traditional biogas fermentation tanks for biogas production are greatly affected by the ambient temperature, and the gas production operation of the system is unstable. The output difference between winter and summer is obvious, and even gas cannot be produced in severe cold

Due to many reasons, most of the traditional biogas digesters do not have supporting heating facilities, resulting in a serious decline in biogas production in a low temperature environment, or even shutdown

Even if some biogas digesters adopt certain heating measures, for example, some heat exchange tubes are installed in the fermentation liquid of the biogas digester, which better solves the problem of heating the fermentation liquid at low temperature, but in the process of biogas fermentation, many The anaerobic activity of microorganisms is very active, and the microorganisms attach and scale on the heat exchange tubes. In the case of imperfect cleaning technology, the heat transfer efficiency and effect of the heat exchange tubes are seriously affected, resulting in inefficient gas production in the biogas digester. and proceed normally

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