CN106115834B - 多段曝气发生器及一种污水处理方法 - Google Patents
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Abstract
本发明涉及污水处理领域,更具体地,涉及一种多段曝气发生器,该多段曝气发生器,包括发生器本体,安装在发生器本体上的压力监察装置,其特征在于,还包括:文丘里喷嘴,毛细导管与同心管,所述毛细导管一端与文丘里喷嘴连接,另一端与同心管连接。本发明公开的多段曝气发生器,设计新颖,文丘里喷嘴与同心管的组合,能够提供持续和稳定的非常细微的泡沫,同时可以对于输入运作参数之更动立即做出输出变动;用来调控空气进给和泵速度,以产生适当的泡沫密度和尺寸以用于后续处理,有较好的市场前景。
Description
技术领域
本发明涉及污水处理领域,更具体地,涉及一种多段曝气发生器及一种污水处理方法。
背景技术
目前,近一个多世纪以来,溶气浮(DAF)选被广泛应用于污水处理。溶气浮选过程会产生细气泡。疏水微粒离开液体,其中吸附气泡集中或过滤废料(分子,胶体或大微粒)。气泡表面废物被有选择吸收,分离效率绝大部分取决于气泡的数量和体积,另外一部分取决于表面活性差异,传统的污水处理***有着以下明显缺点:一、装置占用空间巨大,大大提高了生产成本以及运营成本;二、输出(气泡密度和流速)不能够即时 对自输入参数(供气和泵速)进行反应,缺乏生产的灵活性,因此,提出一种解决上述问题的多段曝气发生器实为必要。
发明内容
本发明旨在克服上述现有技术所述的至少一种缺陷(不足)。
本发明的首要目的是提供一种多段曝气发生器,技术方案如下:
一种多段曝气发生器,包括发生器本体,安装在发生器本体上的压力监察装置和文丘里喷嘴,还包括:毛细导管与同心管,所述毛细导管一端与文丘里喷嘴连接,另一端与同心管连接,该装置设计新颖,文丘里喷嘴与同心管的组合,能够提供持续和稳定的非常细微的泡沫,同时可以对于输入运作参数之更动立即做出输出变动;用来 调控空气进给和泵速度,以产生适当的泡沫密度和尺寸以用于后续处理。
进一步的,所述文丘里喷嘴包括喷嘴本体,喷嘴前端进口装置与喷嘴后端出口装置,所述喷嘴本体一端与喷嘴前端进口装置连接,另一端与喷嘴后端出口装置连接,文丘里喷嘴采用用合理的几何曲面参数设计而成,能形成大流量的水循环,且具有防止堵塞的喷射孔。
更进一步的,所述同心管包括内部管状构件、胚体与外部管状构件,所述胚体一端与内部管状构件连接,另一端与外部管状构件连接,通过制备过程的烧结时一个管在另一个管上径向收缩的方法制备管状体,使得物件具有在径向变化的性能。
更进一步的,所述内部管状构件上还设有多层同心层。
进一步的,所述压力监察装置包括压力传感器与压力显示装置,所述压力传感器与压力显示装置电连接,压力传感器能感应装置中流体形成的压力数据,并将其反馈到压力显示装置中,提醒操作者注意。
更进一步的,所述同心管上设有流量监控装置。
本发明的又一目的是提供一种污水处理方法,包括以下步骤:
S1.空气进入溶解泵与废水混合;
S2.混合的废水空气曝气,产生微气泡和废水液体混合;
S3.混合的溶液分散到浮选槽进行过滤和污水处理。
进一步的,步骤S2混合的废水空气进入上述的多段曝气发生器,多段曝气发生器可以为一个或者串联在一起的多个文丘里喷嘴与同心管的组合,微气泡通过多次曝气提取和重复的气泡剪切,产生微气泡和废水液体混合形成白色溶液。
进一步的,步骤S3白色溶液分散到浮选槽进行过滤和污水处理前,微气泡和废水液体混合形成的白色溶液先经过喷洒装置,所述喷洒装置设有阀门,可以消除过多湍急水流。
更进一步的,所述喷洒装置中间设置有分离室,作为释放未溶解之气,分离室之顶部放气管排放过量悬浮气体以及未溶解气泡,避免影响截留质 量。
与现有技术相比,本发明技术方案的有益效果是:
(1)本发明公开的多段曝气发生器,该装置设计新颖,文丘里喷嘴与同心管的组合,能够提供持续和稳定的非常细微的泡沫,同时可以对于输入运作参数之更动立即做出输出变动;用来 调控空气进给和泵速度,以产生适当的泡沫密度和尺寸以用于后续处理。
(2)本发明公开的多段曝气发生器,文丘里喷嘴采用用合理的几何曲面参数设计而成,能形成大流量的水循环,且具有防止堵塞的喷射孔。
(3)本发明公开的多段曝气发生器,结构简单,维修方便。
(4)本发明公开的多段曝气发生器,生产成本低廉,适合大量生产。
附图说明
图1是本发明中多段曝气发生器的外部结构示意图。
图1中,1为发生器本体、2为压力监察装置、3为文丘里喷嘴、4为毛细导管、5为同心管。
具体实施方式
附图仅用于示例性说明,不能理解为对本专利的限制;为了更好说明本实施例,附图某些部件会有省略、放大或缩小,并不代表实际产品的尺寸;对于本领域技术人员来说,附图中某些公知结构及其说明可能省略是可以理解的。
在本发明的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是机械连接,也可以是电连接;可以是直接相连,也可以是通过中间媒介间接连接,可以说两个元件内部的连通。对于本领域的普通技术人员而言,可以具体情况理解上述术语在本发明的具体含义。下面结合附图和实施例对本发明的技术方案做进一步的说明。
如图1所示,一种多段曝气发生器,包括发生器本体1,安装在发生器本体上的压力监察装置2和文丘里喷嘴3,还包括:毛细导管4与同心管5,毛细导管一端与文丘里喷嘴连接,另一端与同心管连接,该装置设计新颖,文丘里喷嘴与同心管的组合,能够提供持续和稳定的非常细微的泡沫,同时可以对于输入运作参数之更动立即做出输出变动;用来 调控空气进给和泵速度,以产生适当的泡沫密度和尺寸以用于后续处理,文丘里喷嘴包括喷嘴本体,喷嘴前端进口装置与喷嘴后端出口装置,喷嘴本体一端与喷嘴前端进口装置连接,另一端与喷嘴后端出口装置连接,文丘里喷嘴采用合理的几何曲面参数设计而成,能形成大流量的水循环,且具有防止堵塞的喷射孔。同心管包括内部管状构件、胚体与外部管状构件,胚体一端与内部管状构件连接,另一端与外部管状构件连接,通过制备过程的烧结时一个管在另一个管上径向收缩的方法制备管状体,使得物件具有在径向变化的性能,内部管状构件上还设有多层同心层,压力监察装置包括压力传感器与压力显示装置,压力传感器与压力显示装置电连接,压力传感器能感应装置中流体形成的压力数据,并将其反馈到压力显示装置中,提醒操作者注意,同心管上设有流量监控装置。该装置可以提供持续和稳定的非常细微的泡沫。其中最重要成果是,可以对于输入运作参数之更动立即做出输出变动;用来 调控空气进给和泵速度,以产生适当的泡沫密度和尺寸以用于后续处理,当空气与废水混合沿着泵内截面,被气化至饱和时,进入文丘里喷嘴与同心管组合前,此时根据 Henry定律下,在特定液压力下可释溶气在这点形成“气相水相平衡”。然而,大部分未溶解的空气以相对大泡沫混合的形式被搅动,基於文丘里喷嘴入口和出口之间的压力差别,已溶解在液体之空气按Henry定律下,第一批小泡沫从饱气化中“凝结”以形成气体泡沫。在此阶段,被提取小泡沫,并同(未溶解且搅动后的空气所形成的)大泡沫相融合,得以制备出既稳定又非常细微的泡沫。
本发明提供一种污水处理方法,包括以下步骤:
1.空气进入溶解泵与废水混合
本发明的污水处理方法包括空气溶解泵,空气通过泵的进气总管直接直接夹带入废水流。空气与废水合物被压缩至设计压力10bar,其中确保空气能在可溶比下(根据Henry定律)充分进溶解入混合液体,调节以改变进气量及空气溶解泵的速度,从而获得在期望的泡沫大小尺寸和气泡沫之浓度。一般情况下,当泵的速度保持恒定时,当进气增加相对泡沫尺寸亦会较大。同样,通过在持恒的进气速度下,调高泵的速度,我们可以观测到泡沫尺寸也会减小,而传统的溶气浮***只在特定的空气和废水压设置下才能发挥曝气功能。
2.混合的废水空气进入权利要求1-6所述的多段曝气发生器,产生微气泡和废水液体混合形成白色溶液
废水空气混合递入文丘里喷嘴与同心管耦合之曝气发生器,其中,同心管之截面面积是与文丘里喷嘴之入口接近,在这种情况下压力可以恢复。第一个文丘里喷嘴与同心管组合的出口和第二个文丘里喷嘴与同心管入口连接。多个文丘里管和同心管组成多段曝气发生器。微气泡通过多次曝气提取和重复之气泡剪切包括以下步骤:
(1)首先,空气与废水混合沿着泵内截面,被气化至饱和,当进入第一个文丘里喷嘴与同心管组合前,此时根据Henry定律,在特定液压力下可释溶气在这点形成“气相水相平衡”。大部分未溶解的空气以相对大泡沫混合的形式被搅动。
(2)基於文丘里喷嘴入口和出口之间的压力差别,已溶解在液体之空气按 Henry定律下,第一批小泡沫从饱气化中“凝结”以形成气体泡沫。在此阶段,被提取小泡沫,并同(未溶解且搅动后的空气所形成的)大泡沫相融合。
(3)此时的同心管总横切面与“(1)”等同,所以液体之压力得以恢复,由于大泡沫之表面张力比微泡弱,因此大泡首先打被破裂,并且空气首先反溶解。
(4)同心管的总横切面同“(3)”保持平衡状态,在设计时两个实心管壁之间的内部距离,可给予足够的湍流剪切力以缩减小微气泡沫体积。
(5)重复“(2)”至“(4)”过程,直至产生”怀特水流”为止。
相较于传统溶气浮选,本发明可以方便地从废水中移除疏水的和亲水的污染物,并且在启动设备和营运成本上与传统型空气溶解浮选相比,分别有30%和 40%减少。另外,泡沫的尺寸从通常从10-50um减小至1-10um,并且空气溶解度从12%(根据Herny定律)提高到15-25%体积/体积,营运液体温度可高至45度。
3.白色溶液分散到浮选槽进行过滤和污水处理
多段曝气发生器之输出是通过管道输送到喷洒装置。其中微气泡和废水液体混合形成白色溶液,分散到浮选槽进行过滤和污水处理。喷洒装置是没有阀门装置,可以消除过多湍急水流。在喷洒装置中间装备有分离室,设计作为释放未溶解之气,分离室之顶部放气管排放过量悬浮气体以及未溶解气泡,避免影响截留质 量。
喷洒装置包括上部和下部的金属圆盘,这两个圆盘被栓在一起,之间留有可调节的空隙,以便精准地调节分散流动速率以便于同浮选池和脱泥机设计相同步。喷洒装置是一个种工程设计,具有以下两个功能:
a.将“怀特水流”平均地分散至浮选池,
b.提取并从“怀特水流”中排出未溶解的空气。这两种具体化的目的都是将 (由空气泡沫悬浮速度而形成)聚集滞留破坏最小化。
“怀特水流”从下往上排出,暂时保持在(由上部和下部保留环所形成的) 中央室内。“白色流入液”在所有方面被慢慢地分散至浮选槽。圆盘中央的空隙将未溶解空气困住,然后通过位于顶部的通气管溢出。
图中,描述位置关系仅用于示例性说明,不能理解为对本专利的限制;显然,本发明的上述实施例仅仅是为清楚地说明本发明所作的举例,而并非是对本发明的实施方式的限定。对于所属领域的普通技术人员来说,在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明权利要求的保护范围之内。
Claims (4)
1.一种多段曝气发生器,包括发生器本体,安装在发生器本体上的压力监察装置和文丘里喷嘴,其特征在于,还包括:毛细导管与同心管,所述毛细导管一端与文丘里喷嘴连接,另一端与同心管连接,所述同心管包括内部管状构件、胚体与外部管状构件,所述胚体一端与内部管状构件连接,另一端与外部管状构件连接,所述内部管状构件上还设有多层同心层。
2.根据权利要求1所述的多段曝气发生器,其特征在于,所述文丘里喷嘴包括喷嘴本体,喷嘴前端进口装置与喷嘴后端出口装置,所述喷嘴本体一端与喷嘴前端进口装置连接,另一端与喷嘴后端出口装置连接。
3.根据权利要求1所述的多段曝气发生器,其特征在于,所述压力监察装置包括压力传感器与压力显示装置,所述压力传感器与压力显示装置电连接。
4.根据权利要求1所述的多段曝气发生器,其特征在于,所述同心管上设有流量监控装置。
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CN202010101588.5A CN111498935A (zh) | 2016-06-27 | 2016-06-27 | 一种污水处理方法 |
PCT/CN2017/090166 WO2018001219A1 (zh) | 2016-06-27 | 2017-06-27 | 多段曝气发生器及一种污水处理方法 |
US16/309,425 US20190160440A1 (en) | 2016-06-27 | 2017-06-27 | Multi-stage aeration generator and method of sewage treatment |
CA3028268A CA3028268A1 (en) | 2016-06-27 | 2017-06-27 | Multi-stage aeration generator and method of sewage treatment |
AU2017287380A AU2017287380A1 (en) | 2016-06-27 | 2017-06-27 | Multi-stage aeration generator and method of sewage treatment |
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