Infrared differential spectroscopy-based biogas detection and purification control system

Abstract

The invention relates to an infrared differential spectroscopy-based biogas detection and purification control system. The system has the advantages of high detection accuracy, low cost and long service life. The infrared differential spectroscopy-based methane detection and purification control system comprises a control center and a processing unit, and is characterized in that: A, a biogas tank is sequentially communicated with a dehydrating tower, a desulfurizing tower, a decarburization tower and a biogas storage tank through a pipeline; B, the pipeline inlets of the dehydrating tower, the desulfurizing tower, the decarburization tower and the biogas storage tank are provided with a sampling port respectively, and each sampling port is sequentially communicated with a pretreatment device and a gas chamber of an infrared detection center through a gas pipe; and C, a full-wave band infrared light source emits infrared light for detecting the gas to the gas chamber, an infrared detector receives and detects the infrared light after detection, and the acquired information is transmitted to the processing unit for data processing and is transmitted to the control center.

Description

technical field [0001] The invention relates to a biogas detection and purification control system based on infrared differential spectroscopy. Background technique [0002] Biogas is a kind of clean energy. Against the backdrop of a sharp increase in international energy demand, the production and utilization of biogas is of great significance. my country is a large agricultural country, and there are sufficient raw materials for biogas production. At the same time, biogas can be efficiently used in industrial production after purification. Therefore, the production and efficient utilization of biogas is an important node connecting my country's industry and agriculture, and is of great importance to my country's economic development. effect. [0003] Biogas is a flammable mixed gas, generally containing methane, carbon dioxide, hydrogen sulfide, water vapor and a small amount of ammonia, hydrogen and carbon monoxide, etc. The content of each component in biogas made from d...

AI Technical Summary

Problems solved by technology

[0009] In the traditional biogas purification and purification methods, there are many processes for desulfurization, dehydration and carbon dioxide removal, but most of them only remove a certain component, and fail to comprehensively consider the desulfurization, dehydration and carbon dioxide removal processes to form a complete set of biogas Purification and purification system

Moreover, it is impossible to change the amount of corresponding reagents and the operation of equipment according to the amount of biogas treatment, and it is also impossible to coordinate all aspects of the biogas purification and purification process, resulting in waste of resources

In addition, in the various processes of biogas purification and purification, most of the sensors are used to control the specifications of the purification and purification products, and there is no corresponding detection and control system

In the process of desulfurization, dehydration and removal of carbon dioxide, each process is independently controlled by its own sensor, failing to organically combine the three purification processes into a purification system, and failing to realize simultaneous detection and control of multiple components combine

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