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CN106760260A - One kind collection quick filtering device of rainfall pattern - Google Patents

One kind collection quick filtering device of rainfall pattern Download PDF

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Publication number
CN106760260A
CN106760260A CN201611024624.2A CN201611024624A CN106760260A CN 106760260 A CN106760260 A CN 106760260A CN 201611024624 A CN201611024624 A CN 201611024624A CN 106760260 A CN106760260 A CN 106760260A
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China
Prior art keywords
rainwater
baffle
wall
diameter
rainwater pipe
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Pending
Application number
CN201611024624.2A
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Chinese (zh)
Inventor
陈红兵
任俊娴
侯邦飞
张雯娜
李兆华
卢进登
莫彩芬
聂梓源
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Wuhan Ge Sanghua Environment Technology Co Ltd
Hubei University
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Wuhan Ge Sanghua Environment Technology Co Ltd
Hubei University
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Application filed by Wuhan Ge Sanghua Environment Technology Co Ltd, Hubei University filed Critical Wuhan Ge Sanghua Environment Technology Co Ltd
Priority to CN201611024624.2A priority Critical patent/CN106760260A/en
Publication of CN106760260A publication Critical patent/CN106760260A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/04Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/08Down pipes; Special clamping means therefor
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/04Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/08Down pipes; Special clamping means therefor
    • E04D2013/082Down pipe branches
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/04Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/08Down pipes; Special clamping means therefor
    • E04D2013/086Filters

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Sewage (AREA)
  • Filtration Of Liquid (AREA)

Abstract

本发明公开了一种集雨型快速滤过装置,包括一雨水管;雨水管内包括螺旋挡板、铁丝网和过滤挡板;螺旋挡板设置于雨水管内壁上部;铁丝网位于螺旋挡板下方,铁丝网为无上下底面的圆台形结构,其上端直径大于下端直径;过滤挡板设置于雨水管底部并与铁丝网下端固定连接,过滤挡板为无上下底面的圆台形结构,其上端直径小于下端直径;铁丝网外壁、过滤挡板外壁和雨水管内壁围成的区域形成收集空间;雨水管外设有支管,支管设置于雨水管底部,并与收集空间连通。本装置实现雨水和大粒径污染物的快速有效分离,结构简单,无动力需求,主要用于雨水的收集过滤,为偏远农村地区或缺水山区雨水的收集利用提供了方便。

The invention discloses a rain-collecting fast filtering device, which comprises a rainwater pipe; the rainwater pipe includes a spiral baffle, a barbed wire and a filter baffle; the spiral baffle is arranged on the upper part of the inner wall of the rainwater pipe; The frustum-shaped structure of the upper and lower bottom surfaces, the diameter of the upper end is larger than the diameter of the lower end; the filter baffle is arranged at the bottom of the rainwater pipe and is fixedly connected with the lower end of the barbed wire, and the filter baffle is a frustum-shaped structure without upper and lower bottom surfaces, and the diameter of the upper end is smaller than the diameter of the lower end; the outer wall of the barbed wire, The area enclosed by the outer wall of the filter baffle and the inner wall of the rainwater pipe forms a collection space; a branch pipe is arranged outside the rainwater pipe, and the branch pipe is arranged at the bottom of the rainwater pipe and communicates with the collection space. This device realizes the rapid and effective separation of rainwater and large particle size pollutants. It has a simple structure and no power requirements. It is mainly used for rainwater collection and filtration, and provides convenience for the collection and utilization of rainwater in remote rural areas or water-deficient mountainous areas.

Description

一种集雨型快速滤过装置A rain-collecting type rapid filter device

技术领域technical field

本发明涉及雨水收集净化技术领域,更具体地,涉及一种集雨型快速滤过装置。The invention relates to the technical field of rainwater collection and purification, and more particularly, to a rain-collecting type rapid filtration device.

背景技术Background technique

我国是一个水资源相对匮乏、时空分布又极度不均匀的国家,再加上水资源年季变化大,降水及径流存在丰、枯年份交替出现等现象,造成一些干旱地区灾害频繁出现,水资源供需矛盾突出。my country is a country with relatively scarce water resources and extremely uneven temporal and spatial distribution. In addition, water resources vary greatly from season to season. Precipitation and runoff appear alternately in rich and dry years, resulting in frequent disasters in some arid areas. Water resources supply and demand The contradiction is prominent.

目前,现有的一些雨水收集装置在收集利用过程中,有落叶、鸟粪、垃圾等随雨水一起落入雨水管内,不能对雨水中大粒径污染物分离,对初期雨水没有进行有效的过滤。At present, during the collection and utilization process of some existing rainwater collection devices, fallen leaves, bird droppings, garbage, etc. fall into the rainwater pipe together with the rainwater, which cannot separate the large particle size pollutants in the rainwater, and does not effectively filter the initial rainwater. .

发明内容Contents of the invention

针对现有技术中存在的问题,本发明的目的在于设计提供一种集雨型快速滤过装置,解决雨水中大粒径污染物快速有效分离的技术问题。In view of the problems existing in the prior art, the purpose of the present invention is to design and provide a rain-collecting type rapid filtration device to solve the technical problem of rapid and effective separation of large particle diameter pollutants in rainwater.

一种集雨型快速滤过装置,包括一雨水管;所述雨水管内包括螺旋挡板、铁丝网和过滤挡板;所述螺旋挡板设置于雨水管内壁上部;所述铁丝网位于螺旋挡板下方,所述铁丝网为无上下底面的圆台形结构,其上端直径大于下端直径;所述过滤挡板设置于雨水管底部并与铁丝网下端固定连接,所述过滤挡板为无上下底面的圆台形结构,其上端直径小于下端直径;所述铁丝网外壁、所述过滤挡板外壁和雨水管内壁围成的区域形成收集空间;所述雨水管外设有支管,所述支管设置于雨水管底部,并与所述收集空间连通。A rainwater collection type fast filtering device, comprising a rainwater pipe; the rainwater pipe includes a spiral baffle, a barbed wire and a filter baffle; the spiral baffle is arranged on the upper part of the inner wall of the rainwater pipe; the barbed wire is located below the spiral baffle, and the The wire mesh is a frustum-shaped structure without upper and lower bottom surfaces, and the diameter of its upper end is larger than that of the lower end; the filter baffle is arranged at the bottom of the rainwater pipe and is fixedly connected with the lower end of the wire mesh. The diameter is smaller than the diameter of the lower end; the area surrounded by the outer wall of the barbed wire, the outer wall of the filter baffle and the inner wall of the rainwater pipe forms a collection space; a branch pipe is arranged outside the rainwater pipe, and the branch pipe is arranged at the bottom of the rainwater pipe and communicates with the collection space .

与现有技术相比,本发明具有以下有益效果:实现雨水和大粒径污染物的快速有效分离,结构简单,无动力需求,主要用于雨水的收集过滤,为偏远农村地区或缺水山区雨水的收集利用提供了方便。Compared with the prior art, the present invention has the following beneficial effects: the rapid and effective separation of rainwater and large particle size pollutants is realized, the structure is simple, there is no power demand, and it is mainly used for collecting and filtering rainwater, and it is suitable for remote rural areas or water-deficient mountainous areas. The collection and utilization of rainwater provides convenience.

附图说明Description of drawings

以下结合附图和具体实施方式对本发明作进一步的解释说明。The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.

图1是本发明的剖面结构示意图;Fig. 1 is the sectional structure schematic diagram of the present invention;

图2是本发明的整体结构示意图;Fig. 2 is the overall structure schematic diagram of the present invention;

附图标记说明:1—雨水管;2—螺旋挡板;3—铁丝网;4—过滤挡板;5—法兰;11—支管。Explanation of reference signs: 1—rainwater pipe; 2—spiral baffle; 3—barbed wire; 4—filter baffle; 5—flange; 11—branch.

具体实施方式detailed description

下面结合附图对本发明进行详细描述,本部分的描述仅是示范性和解释性,不应对本发明的保护范围有任何的限制作用。现结合图1、图2对本发明作进一步说明。The present invention will be described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present invention. Now in conjunction with Fig. 1, Fig. 2 the present invention will be further described.

本发明提供的一种集雨型快速滤过装置,包括一雨水管1;雨水管1内包括螺旋挡板2、铁丝网3和过滤挡板4;螺旋挡板2设置于雨水管1内壁上部;铁丝网3位于螺旋挡板2下方,铁丝网3为无上下底面的圆台形结构,其上端直径大于下端直径;过滤挡板4设置于雨水管1底部并与铁丝网3下端固定连接,过滤挡板4为无上下底面的圆台形结构,其上端直径小于下端直径;铁丝网3外壁、过滤挡板4外壁和雨水管1内壁围成的区域形成收集空间;雨水管1外设有支管11,支管11设置于雨水管1底部,并与收集空间连通。A rainwater collection type fast filtering device provided by the present invention includes a rainwater pipe 1; the rainwater pipe 1 includes a spiral baffle 2, a barbed wire 3 and a filter baffle 4; the spiral baffle 2 is arranged on the upper part of the inner wall of the rainwater pipe 1; the barbed wire 3 is located Below the spiral baffle 2, the barbed wire 3 is a truncated circular structure without upper and lower bottom surfaces, and its upper end diameter is larger than the lower end diameter; the filter baffle 4 is arranged at the bottom of the rainwater pipe 1 and is fixedly connected with the lower end of the barbed wire 3, and the filter baffle 4 is without upper and lower bottom surfaces. Conical structure, the diameter of its upper end is smaller than the diameter of the lower end; the area surrounded by the outer wall of barbed wire 3, the outer wall of filter baffle 4 and the inner wall of rainwater pipe 1 forms a collection space; The collection space is connected.

雨水管1内包括螺旋挡板2、铁丝网3和过滤挡板4,雨水管1外设有支管11;雨水管1内壁上部上下排列两个螺旋挡板2。The rainwater pipe 1 includes a spiral baffle 2, a barbed wire 3 and a filter baffle 4, and a branch pipe 11 is arranged outside the rainwater pipe 1; two spiral baffles 2 are arranged up and down on the inner wall of the rainwater pipe 1.

螺旋挡板2设置于雨水管1内壁上部,螺旋挡板2为不锈钢材质,其厚度为1-2cm,两螺旋隔板间距5-8cm。The spiral baffle 2 is arranged on the upper part of the inner wall of the rainwater pipe 1, the spiral baffle 2 is made of stainless steel, its thickness is 1-2cm, and the distance between the two spiral partitions is 5-8cm.

铁丝网3位于螺旋挡板2下方,铁丝网3上端与雨水管1内壁焊接,铁丝网3为无上下底面的圆台形结构,铁丝网3与水平夹角为55-65°。The barbed wire 3 is located below the spiral baffle 2. The upper end of the barbed wire 3 is welded to the inner wall of the rainwater pipe 1. The barbed wire 3 is a frustum-shaped structure without upper and lower bottom surfaces. The angle between the barbed wire 3 and the horizontal is 55-65°.

过滤挡板4设置于雨水管1底部,过滤挡板4上端与铁丝网3下端焊接,过滤挡板4为无上下底面的圆台形结构,其下端直径小于等于雨水管1内壁直径,过滤挡板4与垂线夹角为25-35°;过滤挡板4外壁、铁丝网3外壁和雨水管1内壁围成的区域形成收集空间;过滤挡板4有阻隔污染物作用。The filter baffle 4 is arranged at the bottom of the rainwater pipe 1. The upper end of the filter baffle 4 is welded to the lower end of the barbed wire 3. The filter baffle 4 is a conical structure without upper and lower bottom surfaces. The diameter of the lower end is less than or equal to the diameter of the inner wall of the rainwater pipe 1. The angle between the lines is 25-35°; the area surrounded by the outer wall of the filter baffle 4, the outer wall of the barbed wire 3 and the inner wall of the rainwater pipe 1 forms a collection space; the filter baffle 4 has the function of blocking pollutants.

支管11设置于雨水管1外,且位于雨水管1底部,支管11还与收集空间连通,经过滤后的雨水可从支管11流出,支管11直径为15-25cm,支管11口处设有法兰5。The branch pipe 11 is arranged outside the rainwater pipe 1 and is located at the bottom of the rainwater pipe 1. The branch pipe 11 is also connected with the collection space. The filtered rainwater can flow out from the branch pipe 11. The diameter of the branch pipe 11 is 15-25cm. The mouth of the branch pipe 11 is provided with a flange 5 .

法兰5设置于支管11口处,便于连接和延长雨水管道。The flange 5 is arranged at the mouth of the branch pipe 11, which is convenient for connecting and extending the rainwater pipeline.

本发明提供的一种集雨型快速滤过装置工作原理:The working principle of a rain-collecting fast filter device provided by the present invention:

在对雨水进行收集利用过程中,有落叶、鸟粪、垃圾等随雨水一起落入雨水管1内,在雨水下流的过程中,当雨水碰到螺旋挡板2后沿管壁以螺旋式向下流动,在下流时逐渐产生离心力,雨水沿管壁流过铁丝网3作离心运动,雨水会在离心力作用下透过滤网沿支管11流出,支管11口处设有法兰5,便于连接和延长雨水管道,大于铁丝网3孔径的污染物被截留下来,受重力因素向下通过过滤挡板4排出管内。In the process of collecting and utilizing rainwater, fallen leaves, bird droppings, garbage, etc. fall into the rainwater pipe 1 together with the rainwater. In the process of rainwater flowing down, when the rainwater hits the spiral baffle 2, it spirals downward along the pipe wall. The rainwater flows through the wire mesh 3 along the pipe wall for centrifugal movement, and the rainwater will pass through the filter screen and flow out along the branch pipe 11 under the action of centrifugal force. A flange 5 is provided at the mouth of the branch pipe 11, which is convenient for connection and extension of rainwater. In the pipeline, pollutants greater than the aperture of the barbed wire 3 are intercepted, and are discharged in the pipe downward through the filter baffle 4 due to the gravity factor.

以上所述,仅是本发明的较佳实施例而已,并非对本发明的技术范围作出任何限制,故凡是依据本发明的技术实质对以上实施例所作的任何细微修改、等同变化与修饰,均仍属于本发明的技术方案范围内。The above description is only a preferred embodiment of the present invention, and does not make any limitation to the technical scope of the present invention, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention are still valid. It belongs to the scope of the technical solution of the present invention.

Claims (8)

1.一种集雨型快速滤过装置,包括一雨水管;所述雨水管内包括螺旋挡板、铁丝网和过滤挡板;所述螺旋挡板设置于雨水管内壁上部;所述铁丝网位于螺旋挡板下方,所述铁丝网为无上下底面的圆台形结构,其上端直径大于下端直径;所述过滤挡板设置于雨水管底部并与铁丝网下端固定连接,所述过滤挡板为无上下底面的圆台形结构,其上端直径小于下端直径;所述铁丝网外壁、所述过滤挡板外壁和雨水管内壁围成的区域形成收集空间;所述雨水管外设有支管,所述支管设置于雨水管底部,并与所述收集空间连通。1. A rain-collecting type fast filtering device, comprising a rainwater pipe; the said rainwater pipe comprises a spiral baffle, a barbed wire and a filtering baffle; the said spiral baffle is arranged on the upper part of the inner wall of the rainwater pipe; the said barbed wire is located below the spiral baffle , the barbed wire is a frustum-shaped structure without upper and lower bottom surfaces, and the diameter of its upper end is greater than the diameter of the lower end; the filter baffle is arranged at the bottom of the rainwater pipe and is fixedly connected with the lower end of the wire mesh, and the filter baffle is a frustum-shaped structure without upper and lower bottom surfaces, The diameter of the upper end is smaller than the diameter of the lower end; the area surrounded by the outer wall of the barbed wire, the outer wall of the filter baffle and the inner wall of the rainwater pipe forms a collection space; Spatial connectivity. 2.如权利要求1所述的集雨型快速滤过装置,其特征在于,所述雨水管内壁上部上下排列两个螺旋挡板。2. The rain-collecting fast filtering device according to claim 1, wherein two spiral baffles are arranged up and down on the inner wall of the rainwater pipe. 3.如权利要求2所述的集雨型快速滤过装置,其特征在于,所述螺旋挡板为不锈钢材质,其厚度为1-2cm,两螺旋隔板间距5-8cm。3. The rain-collecting fast filtering device according to claim 2, wherein the spiral baffle is made of stainless steel with a thickness of 1-2cm, and the distance between the two spiral partitions is 5-8cm. 4.如权利要求1所述的集雨型快速滤过装置,其特征在于,所述铁丝网上端与雨水管内壁焊接;所述过滤挡板上端与铁丝网下端焊接。4. The rain-collecting fast filtering device according to claim 1, characterized in that, the upper end of the barbed wire is welded to the inner wall of the rainwater pipe; the upper end of the filter baffle is welded to the lower end of the barbed wire. 5.如权利要求1所述的集雨型快速滤过装置,其特征在于,所述铁丝网与水平夹角为55-65°;所述过滤挡板与垂线夹角为25-35°。5. The rain-collecting fast filtering device according to claim 1, characterized in that, the included angle between the barbed wire mesh and the horizontal is 55-65°; the included angle between the filtering baffle and the vertical line is 25-35°. 6.如权利要求1所述的集雨型快速滤过装置,其特征在于,所述过滤挡板下端直径小于等于雨水管内壁直径。6. The rain-collecting fast filtering device according to claim 1, wherein the diameter of the lower end of the filtering baffle is less than or equal to the diameter of the inner wall of the rainwater pipe. 7.如权利要求1所述的集雨型快速滤过装置,其特征在于,所述支管直径为15-25cm。7. The rain collection type rapid filtration device according to claim 1, characterized in that, the diameter of the branch pipe is 15-25cm. 8.如权利要求7所述的集雨型快速滤过装置,其特征在于,所述支管口处设有法兰。8. The rain-collecting type rapid filtration device according to claim 7, wherein a flange is provided at the mouth of the branch pipe.
CN201611024624.2A 2016-11-18 2016-11-18 One kind collection quick filtering device of rainfall pattern Pending CN106760260A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109138050A (en) * 2018-09-25 2019-01-04 湖北大学 A kind of roofing rainwater recovery utilization apparatus
CN112982593A (en) * 2021-03-02 2021-06-18 安徽省宁国新鼎汽车零部件有限公司 Intelligent closestool solenoid electric valve

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0866193A1 (en) * 1997-03-17 1998-09-23 Norbert Winkler Filter collector
GB2368029B (en) * 2000-10-17 2003-12-10 Edward Dudley Bacon A down pipe filter
WO2006065964A1 (en) * 2004-12-17 2006-06-22 Contech Stormwater Solutions Inc. Apparatus for separating particulates from a fluid stream
CN202921064U (en) * 2012-09-26 2013-05-08 吴旭东 Sewage filter
CN104480995A (en) * 2014-11-24 2015-04-01 东华大学 Rainwater collection and reuse integrated device
CN104631609A (en) * 2015-02-05 2015-05-20 天津艾杰环保技术工程有限公司 Unpowered rainwater split-flow sewage intercepting device
CN204815936U (en) * 2015-07-06 2015-12-02 深圳市赛博霖水科技有限公司 Whirl rainwater filter
CN205199079U (en) * 2015-11-09 2016-05-04 河罗环境株式会社 A processing apparatus for initial stage rainwater is recycled

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0866193A1 (en) * 1997-03-17 1998-09-23 Norbert Winkler Filter collector
GB2368029B (en) * 2000-10-17 2003-12-10 Edward Dudley Bacon A down pipe filter
WO2006065964A1 (en) * 2004-12-17 2006-06-22 Contech Stormwater Solutions Inc. Apparatus for separating particulates from a fluid stream
CN202921064U (en) * 2012-09-26 2013-05-08 吴旭东 Sewage filter
CN104480995A (en) * 2014-11-24 2015-04-01 东华大学 Rainwater collection and reuse integrated device
CN104631609A (en) * 2015-02-05 2015-05-20 天津艾杰环保技术工程有限公司 Unpowered rainwater split-flow sewage intercepting device
CN204815936U (en) * 2015-07-06 2015-12-02 深圳市赛博霖水科技有限公司 Whirl rainwater filter
CN205199079U (en) * 2015-11-09 2016-05-04 河罗环境株式会社 A processing apparatus for initial stage rainwater is recycled

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109138050A (en) * 2018-09-25 2019-01-04 湖北大学 A kind of roofing rainwater recovery utilization apparatus
CN112982593A (en) * 2021-03-02 2021-06-18 安徽省宁国新鼎汽车零部件有限公司 Intelligent closestool solenoid electric valve

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Application publication date: 20170531