Double membrane gas holder is a device used to store neutral gases such as biogas, oxygen, carbon dioxide, etc. Double membrane gas holder has high anti-corrosion performance and is easy to install. What precautions should we pay attention to when replacing gas in double membrane gas holders? Below is a brief introduction by Weifang Jinjue Environmental Protection Editor:
Nitrogen is often used for gas replacement of gas and biogas, but the cost of nitrogen gas replacement is high and the replacement speed is also slow. Therefore, some manufacturers choose to use air replacement, which not only has low cost but also fast replacement speed. However, when using air replacement, the following points should be noted:
（1）气柜的放气阀应控制放气速度，放气速度太快，气体易和钢板摩擦发生火花，构成严重后果。
(1) The air release valve of the gas cabinet should control the air release speed. If the air release speed is too fast, the gas can easily rub against the steel plate and cause sparks, which can cause serious consequences.
（2）定期检测出气的含氧量，保证沼气含量在允许范围内。
(2) Regularly test the oxygen content of the gas to ensure that the biogas content is within the allowable range.
(3) When selecting an appropriate blower, the main consideration is the air pressure and air volume inside the blower. If the wind pressure is too low, it is difficult for the gas holder to rise, while if the wind pressure is too high, the gas holder will rise too quickly; The air volume is too small, and the gas cabinet rises slowly. Therefore, the model of the blower should be determined based on the balance pressure and volume of the gas holder.
(4) Gas replacement in the gas cabinet should first open the valves around the bell cover, replace the biogas, and then open the valves in the middle of the bell cover to replace the middle gas, in order to ensure that there are no dead corners in the gas cabinet.
With the summary on biogas desulfurization, we hope it can be helpful to our customers. If you have any questions or need help, please click on our website: https://www.hneee.net Or call for consultation, and we will do our best to solve it for you
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