A biogas purification primary filter device

Abstract

The invention discloses a primary filter device for biogas purification, which comprises a filter tank connected to a biogas collecting tank for collecting biogas from the biogas collecting tank, usually using a fan to pump out the biogas in the biogas collecting tank and pumping it into In the filter tank, the filter tank includes a tank body, which is provided with a partition that separates the tank body from top to bottom, and an opening is left in the middle of the partition; an air intake cavity is provided at the bottom of the tank body, and a primary filter chamber is provided on the upper side of the intake cavity. A secondary filter chamber is set above the plate. The beneficial effects of the invention are: reasonable design, simple structure, by setting a separate air intake chamber, the incoming gas is divided into two streams, and one of the air streams is discharged by means of the exhaust hole provided on the spiral air intake pipe and becomes undisturbed. The regular flow direction collides with another gas to achieve the effect of deceleration. The natural clinoptilolite is set in the filter as an adsorbent to initially purify and filter the biogas.

Description

technical field [0001] The invention relates to the field of biomass energy development and utilization, in particular to a biogas purification primary filter device. Background technique [0002] Biogas is a combustible gas with high calorific value, the main component is methane (CH 4 ) and carbon dioxide (CO 2 ) and a small amount of nitrogen (N 2 ), hydrogen (H 2 ), oxygen (O 2 ), hydrogen sulfide (H 2 S) and other gases, in which the methane content is between 45% and 60%. Compared with other gases, biogas has better antiknock performance and is a good clean fuel. Traditionally, biogas is used for heating, cooking and lighting. With the continuous increase of biogas production, the medium and high-end utilization methods of biogas continue to expand. After purification and purification, biogas can be used for combined heat and power generation, incorporated into natural gas pipeline networks, vehicle fuel, chemical raw materials, and fuel cells. The Laholm biogas...

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Problems solved by technology

In addition, due to the working principle of the traditional biogas purification primary filter device, the gas needs to be processed repeatedly, resulting in a large total volume.

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