CN105692948A

CN105692948A - Rainwater filtering and purifying device

Info

Publication number: CN105692948A
Application number: CN201610281386.7A
Authority: CN
Inventors: 谢刚
Original assignee: Sichuan Muyu Environmental Protection Technology Co Ltd
Current assignee: Sichuan Muyu Environmental Protection Technology Co Ltd
Priority date: 2016-04-29
Filing date: 2016-04-29
Publication date: 2016-06-22
Anticipated expiration: 2036-04-29
Also published as: CN105692948B

Abstract

The invention discloses a rainwater filtering and purifying device which is of a double-wall structure.A cavity defined by an inner cavity wall is a filtering cavity, filtering components are arranged in the filtering cavity, and a collecting port is formed above the filtering components.A cavity formed between the inner cavity wall and an outer cavity wall is a drainage cavity, a through hole is formed in the bottom of the inner cavity wall, and thus the filtering cavity and the drainage cavity are communicated.A water inlet communicated with the drainage cavity is formed in the upper portion of the outer cavity wall, and a dirt discharge port communicated with the filtering cavity is formed in the bottom of the device.The rainwater filtering and purifying device has the advantages that the filtering components are combined in a modularization mode, a reverse filtering scheme is adopted, and the filtering quality of rainwater is good; meanwhile, the purpose of automatic washing and discharging of filtering residues is effectively achieved, the filtering and purifying efficiency is high, and maintenance is convenient.

Description

A kind of dmp filter purifier

Technical field

The present invention relates in a kind of filtering and purifying, particularly a kind of sponge urban construction for filtration, purification the device collecting rainwater。

Background technology

It is that fast row is put soon that conventional urban construction solves the thinking of rainwater emission problem, is collected its draining municipal administration storm sewer system by ground rainwater mouth, is finally drained to natural water area。This processing method does not consider the collection recycling of rainwater, waste natural resources, and it is not provided with regulating and storing and purification facility, under heavy showers environment, is involved in rubbish and the foreign material not only easy blocking pipeline of pipe-line system by rainwater, natural water area can be caused environmental pollution equally。

In order to solve upper problem, country proposes " sponge city " this concept, namely for the rain flood management concept of modern city design, urban infrastructure is allowed to can adapt to environmental change, elastic can tackle the impact that rainwater brings, collect rainwater, delay rainwater, purifying rainwater, savings rainwater, infiltration rainwater when rainfall, again the rainwater release of storage is utilized when needed；

Before rainwater enters final collection container savings, it is necessary to be filtered rainwater purifying；In the dmp filter purifier that tradition is conventional, most material for core is that one or more material mixing are in a container, water inlet introduces from filter element top, the weight utilizing water filters downwards, this filter type has the disadvantage that: (1) filtering material is single or multiple material is lumped together, it is unfavorable for the particle step filtering purifying in rainwater, and is unfavorable for exchange and the maintenance of later stage filter element。(2) rainwater filters from the top down, and the impurity so filtered out can be stayed on filter element, and the time one, these impurities accumulations long were too much, will pollute and block filter element, causing filter element filtering efficiency to reduce, the water quality simultaneously filtered also cannot ensure, serious even can block filter element；(3) after traditional filter element uses a period of time, it is necessary to clear water, filter element is rinsed, to remove attachment impurity above, serious is accomplished by material for core integral replacing, so can waste substantial amounts of clear water, also can additionally increase maintenance cost, increase workman's workload。

Summary of the invention

It is an object of the invention to: provide a kind of and realize the efficient depth-type filtration of rainwater and impurity screening clears up the filtering and purifying of discharge automatically, realized by following technical proposals:

A kind of dmp filter purifier, described device is double-wall structure, the chamber that internal chamber wall surrounds is filter chamber, being provided with filter element in filter chamber, filter element is provided above collecting mouth, and the chamber between internal chamber wall and outer chamber wall is drainage lumens, through hole it is provided with bottom internal chamber wall, by through to filter chamber and drainage lumens, outer chamber wall is provided above the water inlet through with drainage lumens, and bottom of device is provided with the sewage draining exit through with filter chamber。

The present invention adopts reverse filter design, is arranged by said structure, after current enter drainage lumens from water inlet, savings below filter chamber is entered by through hole, when liquid level is put aside after extremely to a certain degree, enter above filter chamber by filter element from below, again through collecting mouth entrance rain water collecting system。

As selection, described water inlet area is more than sewage draining exit area。After current enter from water inlet, will not all quickly entering sewage draining exit, undischarged rainwater enters collection mouth owing to liquid level pressure acts through filter element after putting aside in filter chamber, it is achieved reverse filtration。

As selection, body bottom portion is provided with the valving for control of sewage disposal mouth opening and closing。

As selection, described valving is ball-cock assembly。

After liquid level proceeds to certain phase, sewage draining exit is closed by ball-cock assembly, improves liquid level savings and the rate of filtration further。

As selection, described ball-cock assembly includes ball float, lever and bulb stopper, and bulb stopper is provided with leakage mouth。

As selection, described filter element includes framework and filtering module, and lower portion is provided with several layers and crosses filter grid, and filtering module was arranged in filter grid, was provided with filtering core in filtering module, and the size of filtering module, size are all equal, replaceable from each other。

As selection, described filtering core is quartz sand, activated carbon, filter screen or filter cloth。

As selection, being provided with three layer filtration lattice in described framework, by dmp filter direction, the quartz sand that filtering core is 50 orders arranged in first floor filtering module, intermediate layer is 100 order quartz sands, and tail layer is activated carbon。

Filter element adopts the filtering module of same size, size, can replace at any time with each other, is replaced from crossing in filter grid to extract out by filtering module when safeguarding or adjust filtration needs；Filtering core adopts various material, can change at any time according to filtration needs；Impurity in rainwater and large-scale particulate matter are filtered by the first floor with middle level, and fine particle thing is adsorbed by tail layer activated carbon, to reach to purify purpose。As existed between filter element and internal chamber wall, gap is installed, sealant or diaphragm seal can be added at frame edge and institute's installation site seam crossing, it is to avoid do not filter rainwater and reveal from seam crossing。

As selection, described device top is provided with access hole, and attendant can enter and inside device, filter element and ball-cock assembly be safeguarded, convenient and reliable。

The workflow of the present invention is:

1. rainwater flows into from water inlet through drainage lumens, and after being filtered the last time, the impurity of deposition is gone out from sewage draining exit, and owing to sewage draining exit area is less than water inlet, therefore rainwater is put aside in filter chamber and drainage lumens；

2. after liquid level puts aside certain position, sewage draining exit is closed by ball-cock assembly, improves liquid level savings speed further；

3. under hydraulic action, rainwater enters above filter chamber by filter element, and the rainwater after filtered purification enters rainwater-collecting pipeline by collecting mouth；

4. after rainfall stops, water inlet stops water inlet, and in device, the rainwater of savings is slowly discharged from the leakage mouth ball-cock assembly bulb stopper, and the impurity screening that the water level decreasing in filter chamber will be attached on filtering module is taken out of, at the bottom deposit of filter chamber；

5. after liquid level drops to certain phase, ball-cock assembly is opened, and residue rainwater is discharged from sewage draining exit, takes away the impurity of Partial filtration deposition simultaneously, and device resets, and waits and filtering next time。

In sum, beneficial effects of the present invention:

1. parts carry out modularized design, filtering module external dimensions is identical, every kind of a kind of material for core of module filling, the block combiner of the different material for core of filling is together, tiny particle in rainwater can be carried out step filtering purifying, promote filter effect, can by new module exchange when filter core need to keep in repair replacing simultaneously, safeguard very simple；

2. adopting counter-current to filter, the impurity so filtered out stays the bottom of filtering module, and when filter process terminates, the rainwater of adverse current goes out filtering module the impurity band being attached to module bottom under gravity；

3. utilize sewage draining exit that bottom of device arranges and ball-cock assembly can realize automatically cleaning and discharge impurity screening。

Accompanying drawing explanation

Fig. 1 is the schematic diagram that the present invention starts when intaking；

Fig. 2 is the schematic diagram starting after current of the present invention savings to filter with collect；

Fig. 3 is the discharge opeing view after the present invention stops water inlet；

Fig. 4 is the ball-cock assembly leakage mouth duty close-up schematic view of Fig. 3；

Fig. 5 is the structural representation of filter element；

In figure, 1 is filtering and purifying, and 2 is access hole, and 3 is water inlet, 4 is drainage lumens, and 5 is filter chamber, and 6 is sewage draining exit, and 7 is ball-cock assembly, 8 is filter element, and 9 for collecting mouth, and 10 is through hole, 11 is tail layer filtering module, and 12 is intermediate layer filtering module, and 13 is first floor filtering module, 14 is framework, and 15 was filter grid, and 16 is ball float, 17 is lever, and 18 is bulb stopper, and 19 is leakage mouth。

Detailed description of the invention

Below in conjunction with specific embodiments and the drawings, the present invention is further illustrated。

With reference to shown in Fig. 1, a kind of dmp filter purifier 1 adopting double-wall structure, the chamber that internal chamber wall surrounds is filter chamber 5, being provided with filter element 8 in filter chamber, filter element 8 is provided above collecting mouth 9, and the chamber between internal chamber wall and outer chamber wall is drainage lumens 4, through hole 10 it is provided with bottom internal chamber wall, by through to filter chamber 5 and drainage lumens 4, outer chamber wall is provided above the water inlet 3 through with drainage lumens 4, and bottom of device is provided with the sewage draining exit 6 through with filter chamber 5。Water inlet 3 area is more than sewage draining exit 6 area。Body bottom portion is provided with the ball-cock assembly 7 for control of sewage disposal mouth 6 opening and closing, and described ball-cock assembly 7 includes ball float 16, lever 17 and bulb stopper 18, and bulb stopper 18 is provided with leakage mouth 19。Described filter element 8 includes framework 14, framework 14 is internally provided with three layer filtration lattice 16, it is respectively arranged with first floor filtering module 13 by dmp filter order, intermediate layer filtering module 12, tail layer filtering module 11, the size of each filtering module, size are all equal, replaceable from each other, the quartz sand that filtering core is 50 orders arranged in first floor filtering module 13, intermediate layer 12 is 100 order quartz sands, and tail layer 11 is activated carbon。

As Figure 1-3, rainwater flows into from water inlet 1 through drainage lumens 4, and after being filtered the last time, the impurity of residual is gone out from sewage draining exit 6, and owing to sewage draining exit 6 area is less than water inlet 1, therefore rainwater is put aside in filter chamber 5 and drainage lumens 4；After liquid level puts aside certain position, sewage draining exit 6 is closed by ball-cock assembly 7, improves liquid level savings speed further；Under hydraulic action, rainwater enters above filter chamber 5 by filter element 8, and the rainwater after filtered purification enters rainwater-collecting pipeline by collecting mouth 9；

As it is shown in figure 5, after water inlet 1 stops water inlet, in device, the rainwater of savings is slowly discharged from the leakage mouth 19 ball-cock assembly 7 bulb stopper 18；After liquid level drops to certain phase, ball-cock assembly 7 is opened, and rainwater is discharged from sewage draining exit 6, and device resets, and the remaining impurities left of Partial filtration, bottom filter chamber 5, rushes with current when waiting water inlet next time。

The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent replacement and improvement etc. made within the spirit and principles in the present invention, should be included within protection scope of the present invention。

Claims

1. a dmp filter purifier, it is characterized in that, described device is double-wall structure, and the chamber that internal chamber wall surrounds is filter chamber, is provided with filter element in filter chamber, filter element is provided above collecting mouth, chamber between internal chamber wall and outer chamber wall is drainage lumens, is provided with through hole bottom internal chamber wall, by through to filter chamber and drainage lumens, outer chamber wall is provided above the water inlet through with drainage lumens, and bottom of device is provided with the sewage draining exit through with filter chamber。

2. a kind of dmp filter purifier as claimed in claim 1, it is characterised in that described water inlet area is more than sewage draining exit area。

3. a kind of dmp filter purifier as claimed in claim 1, it is characterised in that bottom of device is provided with the valving for control of sewage disposal mouth opening and closing。

4. a kind of dmp filter purifier as claimed in claim 3, it is characterised in that described valving is ball-cock assembly。

5. a kind of dmp filter purifier as claimed in claim 4, it is characterised in that described ball-cock assembly includes ball float, lever and bulb stopper, and bulb stopper is provided with leakage mouth。

6. a kind of dmp filter purifier as claimed in claim 1, it is characterized in that, described filter element includes framework and filtering module, lower portion is provided with several layers and crosses filter grid, filtering module was arranged in filter grid, being provided with filtering core in filtering module, the size of filtering module, size are all equal, replaceable from each other。

7. a kind of dmp filter purifier as claimed in claim 6, it is characterised in that described filtering core is quartz sand, activated carbon, filter screen or filter cloth。

8. a kind of dmp filter purifier as claimed in claim 7, it is characterised in that be provided with three layer filtration lattice in described framework, by dmp filter direction, the quartz sand that filtering core is 50 orders arranged in first floor filtering module, intermediate layer is 100 order quartz sands, and tail layer is activated carbon。

9. a kind of dmp filter purifier as claimed in claim 1, it is characterised in that described device top is provided with access hole。