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沼气发动机发电机组系统的组成

来源:http://www.huannengpower.com   发布于:2017-12-27

(1)沼气脱硫及稳压、防爆装置:沼气中含有少量的h2s,该气体对发动机有强烈的腐蚀作用,因此供发动机使用的沼气要先经过脱硫装置。

(1) biogas desulfurization and stable pressure and explosion-proof device: biogas contains a small amount of H2S, which has a strong corrosive effect on the engine, so the biogas used for the engine must go through the desulfurization device first.

沼气作为燃气,其流量调节是基于压力差,为了使调节准确,应确保进入发动机时的压力稳定,故需要在沼气进气管路上安装稳压装置。另外,为了防止进气管回火引起沼气管路发生爆炸,应在沼气供应管路上安置防回火与防爆装置。

Biogas as gas, its flow regulation is based on pressure difference. In order to make the regulation accurate, we should ensure that the pressure is stable when entering the engine, so we need to install a voltage stabilizing device on the biogas intake pipeline. In addition, in order to prevent the intake pipe backfire caused by the explosion of the biogas pipeline, the fireproof and explosion-proof device should be placed on the supply line of the biogas supply.

(2)进气系统:在进气总管上,需加装一套沼气一空气混合器,以调节空燃比和混合气进气量,混合器应调节精确、灵敏。

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(2) intake system: on the intake manifold, a biogas air mixer shall be installed to regulate the air-fuel ratio and the intake volume of the mixture. The mixer should be adjusted accurately and sensitively.

(3)发动机:沼气的燃烧速度很慢,若发动机内的燃烧过程组织不利,会影响发动机运行寿命,所以对沼气发动机有较高的要求。

(3) engine: biogas burning rate is very slow. If the organization of combustion process is unfavorable, the operation life of engine will be affected, so the biogas engine has higher requirement.

4)调速系统:沼气发动机的运行场合是和发电机一起以用电设备为负荷进行运转,用电设备的装载、卸载会使沼气发动机负荷产生波动,为了确保发电机正常发电,沼气发动机上的调速系统必不可少。

4) speed control system: operation situation of biogas engine and generator is in electrical equipment for load operation, the electric equipment loading and unloading will make the load fluctuation of biogas engine, in order to ensure the normal power generator, speed control system of biogas engine will not be less.

沼气发酵的条件就是在工艺上满足微生物的生存条件,使它们在合适的环境中生长、发育、繁殖、代谢。在发酵条件比较稳定的情况下,微生物生命活动越旺盛,产生的沼气就越多,产气时间就越长-相反,环境条件满足不了微生物生命活动的需要,沼气发酵就会停止,如原料干物质浓度过高时,产酸量增大,产气就会受阻,甚至不产气。

The condition of biogas fermentation is to meet the survival conditions of microbes and make them grow, develop, reproduce and metabolize in a suitable environment. Relatively stable in the fermentation conditions of microbial life activities more exuberant, the biogas produced more gas, more time - on the contrary, environmental conditions can not meet the needs of microbial life activities, biogas fermentation will stop, such as raw material dry matter concentration is too high, acid production increased, gas production will be blocked, or not gas production.

因此,人们在制取沼气时,必须控制好沼气发酵条件,给沼气微生物创造一个良好的生活环境。

Therefore, when people make biogas, it is necessary to control the conditions of biogas fermentation and create a good living environment for biogas microbes.


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