沼氣工程作為畜禽廢棄物資源化利用的能源環(huán)境工程,其沼氣發(fā)電環(huán)節(jié)是較為常見的資源化利用模式,通過開展沼氣發(fā)電利用,既能讓養(yǎng)殖場(chǎng)提高自身的經(jīng)濟(jì)效益,又可緩解電力緊缺的矛盾,還能解決養(yǎng)殖場(chǎng)多余沼氣利用等問題,是一舉多得的好事情。
Biogas project is an energy and environmental project for the resource utilization of livestock and poultry wastes, and its biogas power generation link is a common resource utilization mode. Through the development of biogas power generation and utilization, it can not only improve the economic benefits of farms, but also alleviate the contradiction of power shortage, and solve the problems of surplus biogas utilization in farms, which is a good thing to achieve more with one stone.
養(yǎng)殖場(chǎng)開展沼氣發(fā)電機(jī)組必須具備三大條件:其一有良好的沼氣生產(chǎn)條件,其二有良好的沼氣貯存條件,其三有良好的沼氣發(fā)電利用設(shè)備(負(fù)荷)條件。
There are three conditions to develop biogas generating units in breeding farms: first, good biogas production conditions; second, good biogas storage conditions; third, good equipment (load) conditions for biogas power generation and utilization.
為了避免沼氣池的產(chǎn)氣量和生產(chǎn)發(fā)電及生活用氣量不平衡,養(yǎng)殖場(chǎng)的沼氣發(fā)電工程必須配備貯氣柜。有了貯氣柜,整個(gè)生產(chǎn)發(fā)電用氣量的調(diào)蓄和穩(wěn)壓就有保證,純沼氣發(fā)電就有充分的可靠性、穩(wěn)定性、安全性。因此設(shè)置沼氣貯存設(shè)備是辦好純沼氣發(fā)電不可缺少的穩(wěn)定因素。
In order to avoid the imbalance of biogas production, power generation and domestic gas consumption, biogas power generation project of breeding farm must be equipped with gas storage tank. With the gas storage tank, the entire production of power generation gas storage and voltage regulation will be guaranteed, pure biogas power generation will have full reliability, stability and safety. Therefore, the installation of biogas storage equipment is an indispensable stable factor for running pure biogas power generation.
用電負(fù)荷量(或同時(shí)工作的用電設(shè)備功率)是養(yǎng)殖場(chǎng)選擇(購買)沼氣發(fā)電機(jī)組輸出功率大小重要指標(biāo),也是沼氣發(fā)電利用成功重要因素,直接關(guān)系到沼氣發(fā)電的經(jīng)濟(jì)性、安全性和可靠性。
Electricity load (or the power of electric equipment working at the same time) is an important indicator of the output power of biogas generating units selected (purchased) by breeding farms. It is also an important factor for the success of biogas power generation and utilization, which is directly related to the economy, safety and reliability of Biogas power generation.
目前,養(yǎng)殖場(chǎng)利用沼氣發(fā)電基本上是內(nèi)部使用。在沼氣氣源穩(wěn)定的條件下,假如無視沼氣發(fā)電利用條件,沒有按照養(yǎng)殖場(chǎng)的用電負(fù)荷來進(jìn)行正確匹配沼氣發(fā)電機(jī)組,則會(huì)出現(xiàn)下面情況:養(yǎng)殖場(chǎng)用電設(shè)備多、功率大,沼氣發(fā)電機(jī)組輸出功率小,那么大功率用電設(shè)備根本不能使用,沼氣發(fā)電意義不大;反之,用電設(shè)備少、功率小,而采用發(fā)電功率大的發(fā)電機(jī)組,電機(jī)達(dá)不到一定負(fù)荷作功,從而造成發(fā)電機(jī)的耗能增加及熱效率降低,節(jié)能效果不明顯,費(fèi)錢費(fèi)氣,經(jīng)濟(jì)效益突顯不出。
At present, the use of biogas power generation is basically internal use. Under the condition of stable biogas source, if the utilization conditions of biogas power generation are ignored and the biogas generator set is not correctly matched according to the electric load of the breeding farm, the following situations will occur: there are many electric equipment and large power in the breeding farm, and the output power of the biogas generator set is small, then the high-power electric equipment can not be used at all, and the biogas power generation is of little significance; On the contrary, with less electrical equipment and small power, the generator set with high power generation can not reach a certain load, resulting in increased energy consumption and reduced thermal efficiency of the generator. The energy saving effect is not obvious, and the economic benefit is not obvious.