1. Gas knowledge: biogas is a combustible gas, which is produced by a variety of microorganisms through the coordinated fermentation of organic substances under anaerobic conditions. The main component is methane (CH4) and contains a certain amount of hydrogen sulfide impurities. According to the source of the original feed gas, the content of hydrogen sulfide is also different. However, a very small amount of hydrogen sulfide will also corrode equipment and pipelines. Therefore, before using methane gas, sulfur must be removed through the purification device.

2.压力知识：yl6809永利净化系统中的气体处于压力下并具有冲击能； 因此在设备安装，调试，操作和维护过程中，必须注意安全，切勿近距离接触气体。 非专业人士未经允许，请勿擅自改动管道阀门，压力表和系统的其他部件。 拆卸零件时，必须确认压力为零。 除非另有说明，否则手册和技术澳门永利网最老登陆入口中的压力均为表压。

2. Pressure knowledge: the gas in the biogas desulfurization and purification system is under pressure and has impact energy; Therefore, in the process of equipment installation, commissioning, operation and maintenance, we must pay attention to safety and do not touch gas at close distance. Non professionals are not allowed to change pipes, valves, pressure gauges and other parts of the system without permission. When disassembling parts, it must be confirmed that the pressure is zero. Unless otherwise specified, the pressure in the manual and technical solution is gauge pressure.

3.电力知识：yl6809永利净化系统中的各种泵，风机和其他设备需要连接380V或220V电源。 您必须注意安全用电（超过36V的电压对人体有害）！ 请仔细阅读每个设备的电气连接要求，并严格按照要求连接电源。 使用220V电源的设备不得使用380V电源，并且必须具有接地保护。 避免短路。

3. Power knowledge: various pumps, fans and other equipment in biogas desulfurization and purification system need to be connected to 380V or 220V power supply. You must pay attention to the safe use of electricity (voltage exceeding 36V is harmful to human body)! Please carefully read the electrical connection requirements of each equipment and connect the power supply in strict accordance with the requirements. Equipment using 220V power supply shall not use 380V power supply, and must have grounding protection. Avoid short circuits.

4.安全常识，在安装，调试，操作和维护yl6809永利净化系统设备之前，请阅读以下安全警告！

4. Safety knowledge. Please read the following safety warnings before installing, debugging, operating and maintaining the equipment of biogas desulfurization and purification system!

a.沼气作为有毒气体，很容易在密封环境中使人窒息窒息。 使用时，人员必须处于通风良好的环境中。 人或动物不得处于充满高纯度CH4的密封环境中。

a. As a toxic gas, biogas can easily suffocate people in a sealed environment. When using, personnel must be in a well ventilated environment. People or animals must not be in a sealed environment filled with high purity CH4.

为了避免人员伤亡。 发生事故时，将事故受害者迅速转移到开放通风的环境中进行人工呼吸。

To avoid casualties. In case of an accident, the accident victim shall be quickly transferred to an open and ventilated environment for artificial respiration.

b.由于yl6809永利净化系统中的气体处于压力下，因此有必要防止压力气体的冲击造成炉渣的增加。 请不要站在风扇和沼气出口处。 整个系统的连接管道必须牢固可靠地密封，为了避免漏气或管道破裂，可能会造成人员伤亡或财产损失。

b. Since the gas in the biogas desulfurization and purification system is under pressure, it is necessary to prevent the increase of slag caused by the impact of pressure gas. Please do not stand at the fan and biogas outlet. The connecting pipes of the whole system must be firmly and reliably sealed. In order to avoid air leakage or pipe rupture, casualties or property losses may be caused.

c.由于整个yl6809永利净化系统均使用380V或220V电源，因此请注意用电安全！ 未经专业人员和未经培训的非专业人员或其他人员，不得擅自操作或改装电器

c. Since the whole biogas desulfurization and purification system uses 380V or 220V power supply, please pay attention to the safety of electricity! Unprofessional personnel and untrained non professionals or other personnel shall not operate or modify electrical appliances without authorization

d.yl6809永利净化系统中的所有设备必须由经过技术培训的专业人员或合格的操作人员进行操作。想要了解更多关于脱硫知识,请关注我们网站http:也可以拨打我们热线， 24小时在线服务！

d. All equipment in the biogas desulfurization and purification system must be operated by technically trained professionals or qualified operators. To learn more about desulfurization, please follow our website http://www.hneee.ne You can also call our hotline for 24-hour online service!