CN111820046A - Pv/t遮阴装置 - Google Patents
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Abstract
PV/T遮阴装置,其目的是在对温室大棚遮阴的同时,实现光热、光电的转化利用,以及消除作物光合作用与光伏发电之间的矛盾冲突,改善作物生长条件,包括支撑架、PV/T板、铁环、螺丝杆套、绳环、拉绳、传动装置、温度传感器、日照强度计、流量计、阀门、水泵、蓄热箱、进水管、出水管、三通阀、蓄电池、控制器、逆变器、交流负载、直流负载。温度传感器实时监测室内的温度变化,通过龙骨两侧的PV/T装置伸展收缩的方式调整遮阴面积,同时实现将一部分PV/T转化为电能和热能的功用。能够实现对温室的遮阴,而且实现光电、光热的转化利用,降低了室内温湿度变化的波动范围,为室内作物生长提供了良好的生长环境。
Description
技术领域
本发明涉及温室大棚技术领域,具体为PV/T遮阴装置。
背景技术
传统的农业温室大棚产业中,“温升保温”问题、电力供应问题、效益问题等,一直以来是农户待解决的关键问题。尤其在我国西北部,昼夜温差大,室内温度波动过大严重影响了室内作物的生长发育。随着温室产业里逐渐出现光伏***,由此对化石燃料的依赖大大减少。在配置光伏的温室中可以同时实现合理的遮阴和发电。
对温室的遮阴可以降低温室内的太阳辐射,从而减少内部空气温度和相对湿度。解决室内过度温升问题。此外,还可以通过减少冷却负荷消耗的电力来节省能量。然而,在温室屋面或屋顶通过设置固定的光伏模块进行遮阴会和作物光合作用的阳光需求发生冲突,在冬季或阴天期间,遮阴密度超过40%会降低开花和产量。
中国发明专利名称为:一种温室大棚遮阳网自动收展装置及方法,申请号为:CN201811292994,该实用新型公开了一种温室大棚遮阳网自动收展装置及方法,该***由大棚支撑架、挡板、自动收展机构和遮阳网等组成,该***根据不同农作物的光照需求实现遮阳网的自动化操作管理,降低了人工操作的劳动强度,提高农作物的产率高等特点。但也存在一些不足:自动化管理增加了电力成本,不适用于偏远农村,且仅是对温室进行简单的遮阴,并没有实现遮阴与能量利用兼具;二是遮阳网使用周期短,容易风化,大量使用造成资源浪费。中国发明专利名称为:一种柔性光伏遮阳蓄电一体化装置及光热利用***,申请号为:CN201910670990,该发明公开了一种柔性光伏遮阳蓄电一体化装置及光热利用***,该***包括柔性PV/T电池板、柔性热管、导热块和集热水管等,该***在遮阴的同时,实现光热、光电的转化利用。但是PV/T集成技术应用于温室大棚中存在空白,需因地制宜。将PV/T板固定于屋面或者屋顶发电产热的同时,也会产生固定的室内阴影会影响室内作物的品质和产量。
发明内容
本发明的目的是在对温室大棚遮阴的同时,实现光热、光电的转化利用,以及消除作物光合作用与光伏发电之间的矛盾冲突,改善作物生长条件。
本发明是PV/T遮阴装置,每一组PV/T遮阴装装置包括支撑架1,焊接固定在龙骨11上,一端焊接第二铁环27,所述龙骨11上固定日照强度计10,PV/T板2,所述PV/T板2背面中心线处配置框架,焊接第二铁环27,内部管道3,利用螺丝杆套4将PV/T板2与支撑架1透过第二铁环27和第一铁环5连接,拉绳8连接绳环6,所述拉绳8连接传动装置7;在光热***中,蓄热箱12连接进水管18和出水管19,所述水管上配置第二阀门15,第三阀门16,第一三通阀20和第二三通阀21;流量计13连接第一阀门14计量蓄热箱12的工质流量,进水管18连接泵17,温度传感器9悬挂在室内;在光电***中,控制器23,所述控制器23连接蓄电池22,直流负载26,PV/T板2和逆变器24,所述逆变器24连接交流负载25。
与现有技术相比,本发明的有益效果是:1、结合PV/T***,对温室大棚遮阴的同时,实现了将PV/T转化为热能和电能的功用。2、本发明实现了对温室的动态遮阴,即根据室内温度变化,改变遮阴面积,有效缓解和降低室内阴影(因光伏阵列固定安置于屋面或屋顶产生)对作物品质和产量的影响。
附图说明
图1为本发明结构示意图,图2为本发明应用的温室结构简单示意图,附图标记及对应名称为:支撑架1,PV/T板2,内置管路3,螺丝杆套4,第一铁环5,绳环6,传动装置7,拉绳8,温度传感器9,日照强度计10,龙骨11,蓄热箱12,流量计13,第一阀门14,第二阀门15,第三阀门16,泵17,进水管18,出水管19,第一三通阀20,第二三通阀21,蓄电池22,控制器23,逆变器24,交流负载25,直流负载26,第二铁环27。
具体实施方式
如图1、图2所示,本发明是PV/T遮阴装置,每一组PV/T遮阴装装置包括支撑架1,焊接固定在龙骨11上,一端焊接第二铁环27,所述龙骨11上固定日照强度计10,PV/T板2,所述PV/T板2背面中心线处配置框架,焊接第二铁环27,内部管道3,利用螺丝杆套4将PV/T板2与支撑架1透过第二铁环27和第一铁环5连接,拉绳8连接绳环6,所述拉绳8连接传动装置7;在光热***中,蓄热箱12连接进水管18和出水管19,所述水管上配置第二阀门15,第三阀门16,第一三通阀20和第二三通阀21;流量计13连接第一阀门14计量蓄热箱12的工质流量,进水管18连接泵17,温度传感器9悬挂在室内;在光电***中,控制器23,所述控制器23连接蓄电池22,直流负载26,PV/T板2和逆变器24,所述逆变器24连接交流负载25。
本发明对温室进行遮阴的同时,实现将太阳辐射29转化为大约6% - 22%的电能31和30% - 67%的热能30。此外,白天,室内温度过高,蓄热箱12相当于吸热体,吸收周围环境热量;夜间相当于放热体,以散热的方式提升室内温度。
如图1、图2所示,所述PV/T板2背部中心线处的框架上焊接第一铁环5,通过螺丝杆套4穿过第一铁环5和第二铁环27将PV/T板2与支撑架1连接为一体。
如图1、图2所示,利用PV/T板2在遮阴的过程中,通过连接蓄电池22和蓄热箱12将太阳辐射能量分别转化为电能和热能。
如图1所示,所述传动装置7能够替换为电机进行控制驱动拉绳8进行拉伸收缩PV/T装置,此过程也能通过PLC电路控制。
如图1所示,所述拉绳8拉动PV/T板2绕支撑架1在0°~ 90°范围内伸展收缩。
如图1、图2所示,所述PV/T 板2中,光伏电池是单晶硅,或者多晶硅,或非晶硅薄膜电池。
如图1、图2所示,支撑架1焊接在温室龙骨11架上,一端横杆焊接第二铁环27,PV/T板2背面中心线处配置框架,焊接第一铁环5,利用螺丝杆套4穿过PV/T板2背部的第一铁环5和支撑架1端的铁环,将PV/T板2与支架1连接,使其绕轴杆转动。所述第一阀门14打开,工质进入蓄热箱12,所述的蓄热箱12管路中配置流量计13,进水管18连接泵17,所述进水管18配有第一三通阀20,将工质输送进管道3和管道28中。所述泵17驱动工质循环吸收光伏组件附近的热量,升高蓄热箱12温度,同时可降低光电组件表面的温度,提升光电效率。光照过程中,PV/T板2表面的光伏组件经光电效应将PV/T转换为电能存储到蓄电池22中,所述蓄电池22连接控制器23和直流负载26,所述控制控制器23可有效防止蓄电池22发生过充过放现象发生。为方便用户需求,电路中连接逆变器24,所述逆变器24将直流电转化为用户所需的交流电,直接输入交流负载25。
所述PV/T板2将***的输入能量(太阳辐射)分别以热能和电能的方式存储到蓄热箱12和蓄电池22中,所述PV/T板2背面中心线处的框架下方焊接第一铁环5,通过螺丝杆套4穿过第一铁环5和支撑架1横杆上的第二铁环27,将PV/T板2固定在支撑架1上并使其绕支撑架1的横杆在0°~90°范围内倾斜,通过传动装置7拉动连接绳环6的拉绳8从而实现不同面积遮阴,所述支撑架1分布在龙骨11两侧,所述龙骨11上方安装日照强度计10测量监测室内太阳辐射。蓄热箱12通过进水管18和出水管19连接PV/T板2,所述蓄热箱连接流量计13,通过打开第一阀门14工质输入蓄热箱,第二阀门15连接泵17,所述泵17连接第一三通阀20,第二三通阀21接入出水管19,驱动工质在***内进行循环换热。蓄电池22与PV/T板2连接进行电能储存,为避免蓄电池22过充过放连接控制器23,所述控制器23连接直流负载26,或为满足农户用电需求,连接逆变器24,将直流电转化为交流电输入交流负载端25。
所述拉动拉绳8伸展收缩的驱动装置7可以是电机。
以上所述仅是本发明的优选实施方式,应当指出的是,对于本领域的技术人员来说,在不脱离本发明原理的前提下,还可以做出若干等同替换和改进,这些等同替换和改进也应包含在本发明的保护范围之内。
Claims (6)
1.PV/T遮阴装置,其特征在于,每一组PV/T遮阴装装置包括支撑架(1),焊接固定在龙骨(11)上,一端焊接铁环(27),所述龙骨(11)上固定日照强度计(10),PV/T板(2),所述PV/T板(2)背面中心线处配置框架,焊接第二铁环(27),内部管道(3),利用螺丝杆套(4)将PV/T板(2)与支撑架(1)透过第二铁环(27)和第一铁环(5)连接,拉绳(8)连接绳环(6),所述拉绳(8)连接传动装置(7);在光热***中,蓄热箱(12)连接进水管(18)和出水管(19),所述水管上配置第二阀门(15),第三阀门(16),第一三通阀(20)和第二三通阀(21);流量计(13)连接第一阀门(14)计量蓄热箱(12)的工质流量,进水管(18)连接泵(17),温度传感器(9)悬挂在室内;在光电***中,控制器(23),所述控制器(23)连接蓄电池(22),直流负载(26),PV/T板(2)和逆变器(24),所述逆变器(24)连接交流负载(25)。
2.根据权利要求1所述PV/T遮阴装置,其特征在于:所述PV/T板(2)背部中心线处的框架上焊接第一铁环(5),通过螺丝杆套(4)穿过第一铁环(5)和第二铁环(27)将PV/T板(2)与支撑架(1)连接为一体。
3.根据权利要求1所述PV/T遮阴装置,其特征在于,利用PV/T板(2)在遮阴的过程中,通过连接蓄电池(22)和蓄热箱(12)将太阳辐射能量分别转化为电能和热能。
4.根据权利要求1所述PV/T遮阴装置,其特征在于,所述传动装置(7)能够替换为电机进行控制驱动拉绳(8)进行拉伸收缩PV/T装置,此过程也能通过PLC电路控制。
5.根据权利要求1所述PV/T遮阴装置,其特征在于,所述拉绳(8)拉动PV/T板(2)绕支撑架(1)在0°~ 90°范围内伸展收缩。
6.根据权利要求1所述PV/T遮阴装置,其特征在于,所述PV/T板(2)中,光伏电池是单晶硅,或者多晶硅,或非晶硅薄膜电池。
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