沼气能源的建立一方面可以补充农村消费和生活的能源需求；另一方面，可以减少工业消费中有机废水和生活垃圾对环境的危害。沼气池中的沼气可用于家庭能源消耗、农副产品消费和加工等，也可用于沼气发电、沼气燃料电池等。沼液用于消耗肥料、饲料、生物农药和培养液。沼渣用于肥料和饲料消耗。沼气工程中能源的多层次应用和材料的循环应用，建立了以沼气为纽带的生态经济体系，完成了环境与经济的双赢，促进了循环经济的可持续发展。
On the one hand, the establishment of biogas energy can supplement the energy demand of rural consumption and life; On the other hand, it can reduce the harm of organic wastewater and domestic waste to the environment in industrial consumption. The biogas in the biogas digester can be used for household energy consumption, consumption and processing of agricultural and sideline products, as well as biogas power generation, biogas fuel cell, etc. Biogas slurry is used to consume fertilizer, feed, biological pesticides and culture medium. Biogas residue is used for fertilizer and feed consumption. The multi-level application of energy and the circular application of materials in biogas engineering have established an ecological economic system linked by biogas, completed the win-win of environment and economy, and promoted the sustainable development of circular economy.
当沼气压力不满足用户要求时，应在沼气脱硫系统中设置专门的沼气增压器。增压器的选择应符合以下规则:。
When the biogas pressure does not meet the user's requirements, a special biogas booster shall be set in the biogas desulfurization system. The selection of supercharger shall comply with the following rules:.
1.升压器的流量应根据用户每小时的用气量来确定，压力应根据用户所需的压力和升压器出口与用户之间的阻力之和来确定；
1. The flow of the booster shall be determined according to the hourly gas consumption of the user, and the pressure shall be determined according to the sum of the pressure required by the user and the resistance between the booster outlet and the user;
2.升压机组并联工作平台的数量不应超过3个，其中一个应备用。
2. The number of parallel working platforms of step-up unit shall not exceed 3, one of which shall be standby.
沼气脱硫系统中的增压器应安装在单独的增压器室内，增压器的布局应符合以下规则:
The supercharger in the biogas desulfurization system shall be installed in a separate supercharger room, and the layout of the supercharger shall comply with the following rules:
1.增压器之间、增压器与墙之间的通道宽度应根据增压器型号、运行维护要求等因素确定；
1. The channel width between superchargers and between supercharger and wall shall be determined according to supercharger model, operation and maintenance requirements and other factors;
2.升压前应设置缓冲装置，沼气在缓冲装置中的停留时间不应小于3s；缓冲装置应配有截止阀和上下限报警装置；当沼气储量处于下限时，应能够通过加压设备关闭自动切断阀联锁；
2. A buffer device shall be set before boosting, and the residence time of biogas in the buffer device shall not be less than 3S; The buffer device shall be equipped with stop valve and upper and lower limit alarm device; When the biogas reserve is at the lower limit, it shall be able to close the automatic shut-off valve interlock through the pressurizing equipment;
3.每个增压器的出口管道上应设置止回阀；增压机组的出口主管和进口主管之间应设置回流管；出口主管道设置阻火器；
3. Check valve shall be set on the outlet pipe of each supercharger; A return pipe shall be set between the outlet main pipe and the inlet main pipe of the booster unit; Flame arrester shall be set for the main outlet pipeline;
4.增压机组前应设置现场紧急停止按钮。
4. The emergency stop button on site shall be set before the booster unit.
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