Novel extraction dropping pipe applied to multiphase extraction device and control method of novel extraction dropping pipe
An extraction device and dropper technology, which is applied in the field of new extraction dropper and its control, can solve problems such as inability to overcome application limitations, and achieve the effect of overcoming the limitation of extraction negative pressure capacity and reducing load
Pending Publication Date: 2017-05-10
上海置浦环境科技有限公司
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None of the above patented technologies can overcome the application limitations mentioned above, and cannot be applied in areas where the groundwater depth exceeds 10 meters
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[0028] 以下结合附图和具体实施方式来进一步说明本发明。
[0029] Such as figure 1 , figure 2 所示,本发明公开一种应用于多相抽提装置的新型抽提滴管,包括抽提井系统,所述抽提井系统包括白管1、固定连接于所述白管1下端部的筛管3、固定设置于所述筛管3底部的底盖4、固定设置于所述白管1上部的井头三通2、由上至下依次填充于所述白管1以及所述筛管3外侧的回填土7、膨润土5、石英砂6,还包括抽提滴管系统,所述抽提滴管系统包括插设于所述白管1以及所述筛管3内的滴管导管8以及压缩空气管9,所述滴管导管8由多段拼接而成,所述滴管导管8的下端部具有斜切口12,所述斜切口12的上部开设有用于固定所述压缩空气管9下端部的穿孔13,通常所述穿孔13位于所述斜切口12上方5cm处,所述压缩空气管9的上端部穿过所述井头三通2与进气阀门16相连接,所述滴管导管8的上端部与真空泵相连接,所述滴管导管8的上部与所述白管1的上部之间设置有活动密封顶盖14,所述白管1上设置有将所述活动密封顶盖14固定的固定结构。
[0030] 抽提井地下部分和常规抽提井基本一致,为行业内公知技术,不再赘述。
[0031] 所述滴管导管8为中空圆形导管,材质可以是UPVC、不锈钢等,外径根据抽提井内径来确定,一般至少比抽提井内径小20mm,便于放置压缩空气管9以及可能的液位或压力的探头和信号传导线。
[0032] 本实施例中优选的实施方式为,多段所述滴管导管8相互之间采用螺纹连接的方式拼接而成,如 figure 2 所示,滴管导管8采用丝扣11连接,此外也可以通过活接、快速接头等方式连接。
[0033] 所述滴管导管8每段长度为0.5-1m,在地下水位1010波动较小的地区,一般设计为0.5m的小段;在地下水波动较大的地区,一般设计1.0m的小段。
[0034] 滴管导管8底部的斜切口12的位置需要根据地下水位10的区域波动情况以及场地特征条件综合确定,所述斜切口12的角度为45°-60°。
[0035] 活动密封顶盖14为橡胶材质,中部开孔,孔径略小于滴管导管8外径,滴管导管8从活动密封顶盖14的中孔穿出与后端的真空泵连接。由于橡胶的伸缩性,可以实现调整滴管导管8在抽提井中位置。滴管导管8调整到位后,通过固定结构,如抱箍1...
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Abstract
The invention discloses a novel extraction dropping pipe applied to a multiphase extraction device and a control method of the novel extraction dropping pipe. The extraction dropping pipe comprises an extraction well system; the extraction well system comprises a white pipe, a sieve pipe, a bottom cover, a well head tee joint, backfilled soil, bentonite, quartz sand and an extraction dropping pipe system; the extraction dropping pipe system comprises a dropping pipe guide pipe and a compressed air pipe which are inserted into the white pipe and the sieve pipe; the dropping pipe guide pipe is formed by splicing a plurality of sections; an oblique incision is formed in the lower end part of the dropping pipe guide pipe; a penetrating hole is formed in the upper end part of the oblique incision; the upper end part of the compressed air pipe penetrates through the well head tee joint and is connected with an air inlet valve; the upper end part of the dropping pipe guide pipe is connected with a vacuum pump; a movable sealing top cover is arranged between the upper part of the dropping pipe guide pipe and the upper part of the white pipe; a fixing structure for fixing the movable sealing top cover is arranged on the white pipe. The limitation that an existing single pump extraction system cannot be applied to regions with deeper buried underground water level due to the limitation of negative pressure capacity is overcome; by matching with an optimized implementation method, the repairing efficiency is improved.
Description
technical field [0001] 本发明涉及土壤地下水修复领域,具体涉及一种应用于多相抽提装置的新型抽提滴管及其控制方法。 Background technique [0002] 多相抽提是一种原位修复技术,通过真空强化抽提方式,抽取地下污染区域的土壤气体、地下水和非水相流体(Non-Aqueous Phase Liquid,NAPL)到地面进行相分离及处理,以控制和修复土壤与地下水中的有机污染物。非水相流体在土壤地下水修复领域又称为自由相。多相抽提是多种修复技术的结合,包括泵出处理、土壤气体抽提、生物通风、自由相回收等,相比以上单独修复技术,能够明显提高修复效率,缩短修复时间。若气相和液相污染物通过一个抽提泵在同一管路中被混合抽提,则该多相抽提又称为单泵多相抽提;若气相和液相通过两个抽提泵在两个管路中被分别抽提,则又被称为双泵多相抽提。 [0003] 单泵多相抽提系统相对于双泵多相抽提系统结构相对简单,因此安装、运行和维护费用相对低廉,但单泵多相抽提系统存在一个较大的应用局限。单泵多相抽提系统使用真空泵来进行抽提,而一般真空泵能够产生的井头抽提负压不会超过1个大气压(10米水柱,0.1Mpa),因此无法在地下水埋深超过10米时实现对地下水的抽提,因为抽提负压不够,无法提升超过10米的地下水柱。通过选用更大抽提负压的真空泵虽然在理论上可行,但高负压状态下运行对管路、阀门等的耐压和密闭性提出了很高的要求,并且设备投资和能耗显著提升,其在工程应用上不具有技术经济可行性。目前国内涉及多相抽提的专利均是单泵多相抽提装置,如中国专利CN201120475085.0和CN201420621000.9,以及中国专利公布CN105253932A和CN104874592A。以上专利技术均无法克服上文提到的应用局限,无法在地下水埋深超过10米的区域开展应用。 [0004] 在保持单泵多相抽提系统结构相对简单,安装、运行和维护费用相对低廉优势基础上,提供一种能克服真空抽提负压能力限制,可以应用于地下水位埋深超过10米区域的单泵多相抽提装置是一个该领域的技术突破,具有很大应用前景。 Contents of the invention [0005] 本发明的目的在于克服上述技术的不足,从而提供一种应用于多相抽提装置的新型抽提滴管,克服现...
Claims
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IPC IPC(8): B09C1/00C02F1/20C02F103/06
CPCC02F1/20B09C1/002B09C1/005C02F2103/06B09C2101/00
Inventor 张晶郭春兆王永华郭鹏飞杜龙飞
Owner 上海置浦环境科技有限公司