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Biogas combustion torches are divided into internal combustion and external combustion types. As environmental regulations become increasingly stringent, external combustion torches have gradually been replaced by internal combustion torches. https://p3-sign.toutiaoimg.com/tos-cn-i-axegupay5k/c412444c90b74dfb869bdbc31383a3e1~tplv-tt-origin-web:gif.jpeg?_iz=58558&from=article.pc_detail&lk3s=953192f4&x-expires=1755756431&x-signature=abIE615Z3wc6HlpcN08%2FMrovsOw%3D Its working principle is as follows: The internal combustion biogas combustion torch is a type of burner that does not produce an visible flame or black smoke; it can burn safely under various operating conditions. The combustion products meet environmental standards, and it has low energy consumption. It features automatic ignition and shutdown, easy operation, remote control, convenient maintenance, automatic shut-off protection for safety, a 99% success rate in ignition, and excellent combustion performance. The internal combustion torch features a windproof cap, and its casing is made of 304SS, which ensures the torch’s ability to withstand high temperatures and corrosion, thereby extending its service life to as much as 15 years. This technology utilizes diffusive combustion to achieve blue-flame combustion, ensuring the safety of the combustion process. The torch features multi-stage combustion nozzles and a flame stabilization structure to ensure that methane combustion does not experience flame outting within the designed range. It is also equipped with a high-energy electron igniter, which can ignite the burner head of the biogas combustion torch under various harsh weather conditions, such as rain, snow, fog, etc. A large amount of biogas is produced during the anaerobic treatment of landfill leachate. The main component of this biogas is methane, which has a high calorific value and can be used as fuel for industrial production or household use ； When dealing with excess biogas, it is necessary to burn the biogas and release the resulting gases into the atmosphere. If the burning is incomplete or no burning occurs before release, it can cause air pollution and even pose a risk of explosion. The specific analysis is as follows: 1. The biogas combustion torch has a closed internal combustion design that is rainproof. The engine shut down due to a fault; the biogas combustion torch is in under-voltage protection mode. When the conditions for biogas combustion are met, the flare operates automatically to ignite. 2. Automatic torch pressure detection: The flame control system is equipped with a set of pressure transmitters on the gas supply pipeline, which set three parameters for low pressure, medium pressure, and high pressure based on the actual gas supply pressure conditions. (1) When the pressure in the gas supply system reaches medium pressure, the flare starts automatically, enabling automatic ignition and initiation of flare combustion. (2) When the pressure in the gas supply system drops to a low value, the flare shuts down automatically. (3) When the pressure in the gas supply system continues to rise to a high level, the secondary flame of the flare is automatically activated. 3. The torch can be started and stopped manually, as well as automatically. The internal combustion biogas burning torch is a safe and reliable industrial combustion device for the atmospheric emission of gases produced after biogas combustion, effectively solving the problems associated with such emissions.