CN110307536A - 适合集约化农业生产的综合能源系统 - Google Patents
适合集约化农业生产的综合能源系统 Download PDFInfo
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Abstract
本发明涉及一种适合集约化农业生产的综合能源系统,包括亚临界水沼气制取模块、综合发电模块、余热回收模块、发酵副产品制取模块等。亚临界水沼气制取模块由储料斗、分拣及粉碎系统、热压氧化罐、发酵罐和储气罐组成,综合发电模块包含沼气发电机组和光伏发电机组两部分;余热回收模块通过余热锅炉和板式换热器对沼气发电机组产生的高温烟气和高温缸套水进行余热回收再利用;发酵副产品制取模块对发酵缸内的沼渣、沼液进行综合回收利用制取有机肥料或进行土壤修复。与传统能源系统相比,本发明确立了一个高度集成、灵活、高效的新型供能体系,可确保以较高可靠性、较低成本满足多元能源需求的同时,实现综合能效提升并充分利用可再生能源。
Description
技术领域
本发明涉及一种综合能源系统领域,尤其是涉及一种适合集约化农业生产的综合能源系统。
背景技术
随着社会经济的高速发展、工业生产水平和居民消费水平的日益增长,能源需求日益增长,并引发了大规模区域型和全球性环境问题。为破解日益严峻的能源和环境困局,美日欧等发达国家在本世纪初提出了综合能源系统发展计划,目的是促进分布式能源的推广应用并提高清洁能源渗透比。
综合能源系统的立体架构使得综合能源系统在规划设计初期就体现出其固有的复杂性。为此,自综合能源概念提出以来,系统的规划设计便引起了国内外学者的广泛关注,并纷纷依据使用场景的不同提出适应性的系统架构。
发明内容
本发明的目的是针对现有方法的缺陷与不足,提供一种适合集约化农业生产的综合能源系统。
本发明的目的可以通过以下技术方案来实现:
一种适合集约化农业生产的综合能源系统,包括亚临界水沼气制取模块、综合发电模块、余热回收模块、调峰模块、发酵副产品制取模块、农产品生产模块、生活耗能模块以及能源传输网络模块,其特点是:
所述亚临界水沼气制取模块由储料斗、分拣及粉碎系统、热压氧化罐、发酵罐和储气罐组成,所述储料斗收集来自区域内生产生活所产生的垃圾,通过分拣及破碎系统分离出可发生厌氧反应的有机物并破碎成易于反应的碎块,并通过称重机后由无轴螺旋输送机送至热压氧化罐,热压氧化罐将使用系统供能网中的蒸汽提供高温高压水解的发酵液送入发酵罐,发酵罐产生的沼气进入储气罐保存,废弃则经过尾气处理装置后排放;
所述综合发电模块包括沼气发电机组、光伏发电机组,所述沼气发电机组连接储气罐,所述沼气发电机组和光伏发电机组利用沼气与太阳能两种易获得的可再生能源实现联合发电,并通过配电房输入国家电网;
所述余热回收模块由余热锅炉和板式换热器组成,余热锅炉和板式换热器分别连接沼气发电机组,分别利用沼气发电机组所产生的高温烟气和高温缸套水余热,产生蒸汽与热水;
所述调峰模块由天然气蒸汽锅炉组成,天然气蒸汽锅炉连接余热回收模块,用于热高峰的补充;
所述发酵副产品制取模块包括固态分离机,所述固态分离机连接发酵罐,利用发酵罐的废弃物通过固液分离方式制取液态有机肥和固态有机肥或进行土壤修复;
所述农场品生产模块包含养殖业、种植业、与之相匹配的农场品加工业及高低温冷库,所述种植业为农场品加工业提供原料和为养殖业提供饲料,所述种植业的废叶、废茎为沼气制取提供原料;所述养殖业的粪便废物通过水解沉砂池为沼气制取提供原料;所述农场品加工业产生的加工废物为沼气制取提供原料;所述养殖业、种植业、农场品加工业的用能均由能源传输网络模块提供;
所述生活耗能模块产生的生活及餐厨垃圾可为亚临界水沼气制取模块提供原料;
所述能源传输网络模块包含电力传输网络、热水传输网络、蒸汽传输网络,所棕电力传输网络、热水传输网络、蒸汽传输网络将区域连接成整体。
进一步,所述分拣及粉碎系统将蔬菜废叶/茎中的砖石、生活及餐厨垃圾中的塑料制品和金属制品分离出来,并将可分解的生物质粉碎成块状物。
进一步,所述发酵罐采用二级厌氧反应罐或后发酵罐。
进一步,所述储气罐采用双膜干式贮气柜。
进一步,所述余热锅炉和天然气调峰锅炉产生的蒸汽通过分汽缸上传至区域蒸汽网络,多余蒸汽可通过与蓄热水箱中的水换热将热储存起来。
进一步,所述沼气排气、余热锅炉烟气和燃气锅炉烟气通过烟气后处理装置达国家排放标准后排放。
本发明的有益效果如下:
(1)本发明建立一种适合集约化农业生产基地的区域型综合能源系统,充分考虑基地内的生产结构与用能特点,充分利用区域内可利用的可再生能源,达到节能减排效果的同时,又为基地创造了效益。
(2)本发明建立起一整套区域能源生产使用传输网络,采用“自发自用,余电上网”原则,电、热能源满足基地需求的同时,多出来的热可通过蓄热水箱储存,多余的电则可售出到电网。
(3)本发明不仅实现了能源的梯级利用,还实现了异种能源的相互转换。
(4)本发明基于农业生产基地的废弃物特点,将生产废弃物(废叶、废茎、粪便)、生活垃圾及餐厨垃圾进行再利用,不仅实现了垃圾的减量化处理,同时还实现了垃圾的高效发电。
(5)本发明采用中文水解工艺除砂可去除80-90%的砂,避免颗粒杂质在厌氧罐和管道内沉积、阻塞,保证后续工艺正常进行。
(6)本发明中的发酵罐中有搅拌装置,使得发酵原料和微生物完全混合,处理量大,停留时间长,产沼气多。
(7)本发明采用双膜干式贮气柜可抵抗强风、积雪、冰冻等恶劣天气的影响,在寒冷地区冬季也能安全运行。
附图说明
图1是本发明中集约化农业生产的区域型综合能源系统结构图;
图2是实施例中适合集约化农业生产的区域型综合能源系统模块图;
图3是实施例中垃圾分拣说明图;
图4是实施例中垃圾减量化及再利用流程图。
具体实施方式
下面结合附图和具体实例对本发明进行详细说明。本实施例以本发明技术方案为前提进行实施,给出了详细的实施方式和具体的操作过程,但本发明的保护范围不限于下述的实施例。
本实施例在传统能源系统的基础上,考虑集约型农业生产基地的生产结构与用能特点,充分利用区域内可利用的可再生能源,建立起一种适合集约型农业生产的综合能源系统。
本实施例提出的一种适合集约化农业生产的综合能源系统,具体涉及一种利用当地便于获取的可再生能源满足大型农业生产基地对于多种能耗需求的综合能源系统。所述综合能源系统由亚临界水沼气制取模块、综合发电模块、余热回收模块、调峰模块、发酵副产品制取模块、农产品生产模块、生活耗能模块以及能源传输网络模块几部分组成,系统结构如图1,模块关联如图2。
所述亚临界水沼气制取模块由储料斗、分拣及粉碎系统、热压氧化罐、发酵罐和储气罐组成。储料斗收集来自区域内生产生活所产生的垃圾,在分拣及破碎系统中分离出可发生厌氧反应的有机物(分拣说明如图3)并破碎成易于反应的碎块;反应物通过称重机后经由无轴螺旋输送机送至热压氧化罐;热压氧化罐使用系统供能网中的蒸汽提供高温高压水解环境;发酵罐产生的沼气进入储气罐保存,废弃则经过尾气处理装置后排放。
所述综合发电模块是利用沼气与太阳能两种易获得的可再生能源通过沼气发电机组与光伏发电机组实现联合发电。
所述余热回收模块由余热锅炉与板式换热器两部分组成,分别将沼气发电机组所产生的高温烟气与高温缸套水余热再利用,产生蒸汽与热水;同时利用吸收式制冷装置实现高温冷库的能源供给。高温烟气经由余热锅炉将热水网络中的回水加热至蒸汽,烟气则经尾气后处理装置后排放;高温缸套水经由板式换热器将低温回水加热成高温热水,多余热水由蓄热水箱储存;部分高温烟气与高温缸套水进入吸手式制冷剂组为高温冷库供能,低温冷库则有系统供能网中的电力驱动。
所述调峰模块由天然气蒸汽锅炉组成,以备用热高峰的补充。
所述发酵副产品制取模块是发酵罐的废弃物(沼渣与沼液)进行再利用,通过固液分离方式制取液态有机肥和固态有机肥或进行土壤修复。所述发酵副产品生产模块将发酵罐中的沼渣、沼液经由固液分离机后可选择两种副产品利用方式:方式一经固液包装机加工成固态有机肥料与液态有机肥料,为种植业提供肥料;方式二经浆液烘干机后生产处用于土壤修复的材料。亚临界水沼气制取模块与副产品生产模块共同实现垃圾减量化处理及再利用过程,如图4。
所述农场品生产模块包含养殖业、种植业、与之相匹配的农场品加工业及高低温冷库。
所述生活耗能模块产生的生活及餐厨垃圾可为亚临界水沼气制取模块提供原料。所述生活耗能指除生产加工耗能外区域内人员生活所需的其他能耗需求。
所述能源传输网络模块包含电力传输网络、热水传输网络、蒸汽传输网络,三类能源网将区域连接成整体。
所述种植业为农场品加工业提供原料的同时可为养殖业提供饲料,同时废叶、废茎等为沼气制取提供原料;养殖业为加工业提供原料的同时,粪便废物通过水解沉砂池为沼气制取提供原料;加工业产生的加工废物也为沼气制取提供原料;三者的用能均由系统供能网提供。
所述人员生活除用能需求由系统供能网提供外,生活垃圾、餐厨垃圾为沼气制取提供原料。
所述沼气发电机组为沼气内燃机。产生的电力输送至区域配电房与光伏发电模块产生的电力一共输送至区域电力网络,区域电力网络与国家电力网相连;机组产生的高温烟气与高温缸套水进入余热利用模块。
上面所述的实施例仅仅是对本发明的优选实施方式进行描述,并非对本发明的范围进行限定,在不脱离本发明设计精神前提下,本领域普通工程技术人员对本发明技术方案做出的各种变形和改进,均应落入本发明的权利要求书确定的保护范围内。
Claims (6)
1.一种适合集约化农业生产的综合能源系统,包括亚临界水沼气制取模块、综合发电模块、余热回收模块、调峰模块、发酵副产品制取模块、农产品生产模块、生活耗能模块以及能源传输网络模块,其特征在于:
所述亚临界水沼气制取模块由储料斗、分拣及粉碎系统、热压氧化罐、发酵罐和储气罐组成,所述储料斗收集来自区域内生产生活所产生的垃圾,通过分拣及破碎系统分离出可发生厌氧反应的有机物并破碎成易于反应的碎块,并通过称重机后由无轴螺旋输送机送至热压氧化罐,热压氧化罐将使用系统供能网中的蒸汽提供高温高压水解的发酵液送入发酵罐,发酵罐产生的沼气进入储气罐保存,废弃则经过尾气处理装置后排放;
所述综合发电模块包括沼气发电机组、光伏发电机组,所述沼气发电机组连接储气罐,所述沼气发电机组和光伏发电机组利用沼气与太阳能两种易获得的可再生能源实现联合发电,并通过配电房输入国家电网;
所述余热回收模块由余热锅炉和板式换热器组成,余热锅炉和板式换热器分别连接沼气发电机组,分别利用沼气发电机组所产生的高温烟气和高温缸套水余热,产生蒸汽与热水;
所述调峰模块由天然气蒸汽锅炉组成,天然气蒸汽锅炉连接余热回收模块,用于热高峰的补充;
所述发酵副产品制取模块包括固态分离机,所述固态分离机连接发酵罐,利用发酵罐的废弃物通过固液分离方式制取液态有机肥和固态有机肥或进行土壤修复;
所述农场品生产模块包含养殖业、种植业、与之相匹配的农场品加工业及高低温冷库,所述种植业为农场品加工业提供原料和为养殖业提供饲料,所述种植业的废叶、废茎为沼气制取提供原料;所述养殖业的粪便废物通过水解沉砂池为沼气制取提供原料;所述农场品加工业产生的加工废物为沼气制取提供原料;所述养殖业、种植业、农场品加工业的用能均由能源传输网络模块提供;
所述生活耗能模块产生的生活及餐厨垃圾可为亚临界水沼气制取模块提供原料;
所述能源传输网络模块包含电力传输网络、热水传输网络、蒸汽传输网络,所棕电力传输网络、热水传输网络、蒸汽传输网络将区域连接成整体。
2.根据权利要求1所述的适合集约化农业生产的综合能源系统,其特征在于:所述分拣及粉碎系统将蔬菜废叶/茎中的砖石、生活及餐厨垃圾中的塑料制品和金属制品分离出来,并将可分解的生物质粉碎成块状物。
3.根据权利要求1所述的适合集约化农业生产的综合能源系统,其特征在于:所述发酵罐采用二级厌氧反应罐或后发酵罐。
4.根据权利要求1所述的适合集约化农业生产的综合能源系统,其特征在于:所述储气罐采用双膜干式贮气柜。
5.根据权利要求1所述的适合集约化农业生产的综合能源系统,其特征在于:所述余热锅炉和天然气调峰锅炉产生的蒸汽通过分汽缸上传至区域蒸汽网络,多余蒸汽可通过与蓄热水箱中的水换热将热储存起来。
6.根据权利要求1所述的适合集约化农业生产的综合能源系统,其特征在于:所述沼气排气、余热锅炉烟气和燃气锅炉烟气通过烟气后处理装置达国家排放标准后排放。
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