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CN201250227Y - 太阳能集热保温式沼气罐 - Google Patents

太阳能集热保温式沼气罐 Download PDF

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CN201250227Y
CN201250227Y CNU2008200683484U CN200820068348U CN201250227Y CN 201250227 Y CN201250227 Y CN 201250227Y CN U2008200683484 U CNU2008200683484 U CN U2008200683484U CN 200820068348 U CN200820068348 U CN 200820068348U CN 201250227 Y CN201250227 Y CN 201250227Y
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Abstract

一种太阳能集热保温式沼气罐，包括罐基、进料口，其特征是：该沼气罐罐体为球形结构，上下两半球可分离式，在罐基(2)之外附有太阳能吸热膜层(4)，罐基(2)之内为保温层(1)，罐体内还附有生物膜(12)；灌顶设有减压阀(6)和排气阀(8)，罐中设有搅拌器(11)，进料口(9)内有导料板(10)。本实用新型沼气罐配合干发酵技术、纯秸秆发酵技术、多级发酵技术使沼气罐的产气量大幅提高，投料产气时间可持续6～8个月之久，自身能耗低，且罐体自动排气、自动减压，使用安全。

Description

太阳能集热保温式沼气罐
技术领域
本实用新型涉及燃气发生装置，具体说是一种太阳能集热保温式沼气罐。
背景技术
沼气是我国目前大力发展的四大重点可再生能源项目之一。《中国新能源和可再生能源发展优先项目》就把农村沼气这一项目作为重点。国家《2000—2015年新能源和可再生能源发展规划要点》曾提出沼气在我国具有巨大的市场空间，为此，中央出台了《农村沼气建设国债项目管理办法》，国家计委印发了《新能源基本建设项目管理的暂行规定》。
农业部《2003—2010年全国农村沼气建设规划》提出：2002年底全国沼气池总量1100万户，计划到2010年，全国沼气池总量达5000万户以上，全国20％的农户可使用沼气；2003—2010年总投资610亿元，中央投资449亿元。从2005年开始，沼气普及工程从中央政策层面开始加速落实到各省、市的执行阶段，是国家为解决中西部落后地区脱贫致富、改善生态环境所采取的重要举措。针对沼气建设，各省市出台了一系列配套制度来保证沼气项目的顺利进行。
有关专家介绍，未来五年中国农村10％的农户将拥有沼气，在生物能资源丰富的农村使用沼气将成为趋势，到2010年，中国农村沼气池用户将达到5700万户以上，占总户数的30％以上，甚至更多。
世界上一些发达国家，也正在进行利用微生物厌氧消化农场废物、生产甲烷的较大规模试验。英国建立了甲烷的自动化工厂，可以替代整个英国25％的煤气消耗量。美国一牧场兴建了一座工厂，主体是一个宽30米、长213米的密封池组成的甲烷发酵结构，这座工厂每天可处理1650吨厩肥，每日可为牧场提供11.3万立方米的甲烷，足够1万户家庭使用。目前美国已拥有24处利用微生物发酵的能量转化工程。
现行广泛使用的沼气池为地埋式的沼气池，由水泥砌成，不可移动，在北方气温较低，地埋式沼气池密闭性不好，产气效率很低。因此各地开发了许多产业化的沼气罐，但仍面临着产气量低、持续时间短、对发酵料要求较高等瓶颈，普通沼气罐内料液时间长了易结壳，产气慢，罐体虽经密封但压力过高易涨坏罐体，使用安全性不高。
发明内容
本实用新型的目的是提供一种产气率高、速度快、取料方便、自动稳定气压的太阳能集热保温式沼气罐。
所述太阳能集热保温式沼气罐，包括罐基、进料口、出渣口，其特征是：该沼气罐罐体为球形结构，上下两半球可分离式，在罐基之外附有太阳能吸热膜层，罐基之内为保温层，罐体内还附有生物膜；灌顶设有减压阀和排气阀，罐中设有搅拌器，进料口之下装有导料板。在所述沼气罐的罐体顶部设输气管，输气管的管路上装有压力表。
本实用新型沼气罐配合干发酵技术、纯秸秆发酵技术、多级发酵技术使沼气罐的产气量大幅提高，投料产气时间可持续6～8个月之久，自身能耗低，且罐体自动排气、自动减压，使用安全。
附图说明
图1是本实用新型结构示意图。
图中：1—保温层，2—罐基，3—合并圈，4—太阳能吸热膜层，5—输气管，6—减压阀，7—压力表，8—排气阀，9—进料口，10—导料板，11—搅拌器，12—生物膜。
具体实施方式
下面结合附图对本实用新型进一步说明：如图1中所示太阳能集热保温式沼气罐，包括罐基、进料口、出渣口，其特征是：该沼气罐罐体为球形结构，上下两半球可分离式。球形设计占地面积小、装料方便，气密性好，不渗水、不漏气、维修保养方便，且可以自动出渣。两个半球可以分离，运输便利。
在罐基2之外附有太阳能吸热膜层4，罐基2之内为保温层1，罐体内还附有生物膜12；罐体在生产时加入了一种特殊的吸光集热材质，吸光量大，可最大限度吸收阳光，转换成热能传递至罐体内。罐基是由有机纤维布和无机复合材料精制而成，设有出气孔、进出料口等，壁厚2～6cm，拉伸强度为93.5pg，弯曲强度100mpg，有很强的机械强度和延伸率，大大超过了传统地下沼气池的强度。罐体型号设有4m3、6m3、8m3、10m3、12m3等多种规格，可满足不同地区、不同家庭的需求。借鉴大型工业沼气工程中的厌氧生物过滤膜的生产方式，太阳能沼气罐中就含有大量的生物膜附着结构，加速了厌氧发酵过程，使沼气的产生效率更高、速度更快。
灌顶设有减压阀6和排气阀8，在所述沼气罐的罐体顶部设输气管5，输气管5的管路上装有压力表7。传统沼气池由于在设计与制作上的原因，在夏季温度高时产气量大，压力过高易涨坏罐体，为此安装有减压阀6和排气阀8，具有自动排气、自动减压功能，使用十分安全。
罐体中的搅拌器11可以防止料液结壳，导料板10将进料口9投入的秸秆或其它的产气料导向搅拌器11，可以充分发挥投入料作用，防止料液结壳，最后利用完的渣料从出料口排出。
本实用新型配合采用干式发酵技术，产气快，产气量大，彻底改变了传统地下沼气池建设成本高、占地面积大、建设周期长、冬季不产气、不易维护等诸多难题，每投料一次可连续产气6-8个月，就像液化气一样使用方便，既干净又环保，周期使用寿命可达20年以上。

Claims (2)

1.一种太阳能集热保温式沼气罐，包括罐基、进料口、出渣口，其特征是：该沼气罐罐体为球形结构，上下两半球可分离式，在罐基(2)之外附有太阳能吸热膜层(4)，罐基(2)之内为保温层(1)，罐体内还附有生物膜(12)；灌顶设有减压阀(6)和排气阀(8)，罐中设有搅拌器(11)，进料口(9)之下装有导料板(10)。
2.根据权利要求1所述的太阳能集热保温式沼气罐，其特征是：在所述沼气罐的罐体顶部设输气管(5)，输气管(5)的管路上装有压力表(7)。
CNU2008200683484U 2008-07-08 2008-07-08 太阳能集热保温式沼气罐 Expired - Fee Related CN201250227Y (zh)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102181362A (zh) * 2011-01-27 2011-09-14 顺平县普惠农丰新能源科技有限公司 一种拼接式的保温沼气罐
CN105013231A (zh) * 2015-07-14 2015-11-04 合肥科启环保科技有限公司 一种基于保温和自动加热的净水设备
CN106834091A (zh) * 2017-01-12 2017-06-13 吉林三才源生物质能源开发有限公司 一种生物质沼气发酵装置及制备方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102181362A (zh) * 2011-01-27 2011-09-14 顺平县普惠农丰新能源科技有限公司 一种拼接式的保温沼气罐
CN105013231A (zh) * 2015-07-14 2015-11-04 合肥科启环保科技有限公司 一种基于保温和自动加热的净水设备
CN106834091A (zh) * 2017-01-12 2017-06-13 吉林三才源生物质能源开发有限公司 一种生物质沼气发酵装置及制备方法

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