CN201643816U - Sand filter - Google Patents

Abstract

The embodiment of the utility model discloses a sand filter with the advantage of uniform water distribution. The sand filter comprises a filter system, wherein the filter system comprises a filtering barrel, a sewage inlet tube, a sand filtration layer arranged in the filtering barrel, and a water segregator placed in the sand filtration layer; the water segregator comprises a main water inlet pipe and a plurality of water distribution pipes; the main water inlet pipe is communicated with the sewage inlet tube and the water distribution pipes respectively; and the combined shape of the water distribution pipes looks like an umbrella stand. In the embodiment of the utility model, the combined shape of the water distribution pipes adopts the shape of the umbrella stand, so that the vertical distance between each water outlet of the water distribution pipes and the sand filtration layer is roughly equal, and the utility model achieves the purpose of uniform water distribution and filtering stroke of water flowing.

Description

Sand filter

Technical field

The utility model relates to sand filter.

Background technology

Sand filter can be with the suspended substance removal in the water, to reach the purpose of cleaning sewage, because of the extensive use in sewage disposal of its good filtration effect as a kind of water filtration facility.The normal sands filter generally comprises filtration system and washed-out sand system, and filtration system wherein comprises lauter tub, the sewage inducting tubes that is connected with lauter tub, is arranged in the sand filter blanket (being piled by sand grains) of lauter tub, the water knockout drum that is arranged at sand filter blanket and outlet pipe.During filtration, sewage enters water knockout drum from sewage inducting tubes, enter sand filter blanket through water knockout drum, and through sand filter blanket the time, pollution impurity in the sewage will be stayed in the sand filter blanket, sewage changes clear water into is discharged outside the lauter tub by outlet pipe, and the sand grains in the sand filter blanket is then polluted because of holding back down pollution impurity.In order not influence filter effect, it is returned sand filter blanket after need utilizing the washed-out sand system that the sand grains that pollutes is cleaned, washed-out sand water is then effluxed.

General water knockout drum comprises main water inlet tube and a plurality of distributive pipe, and main water inlet tube is connected with sewage inducting tubes and distributive pipe respectively, and sewage promptly enters sand filter blanket from each delivery port of distributive pipe.The combined shaped of tradition distributive pipe is radial or circular ring type, therefore its water distribution manner is the water distribution on same plane, but the shape on the top of upper strata sand filter blanket is generally taper shape, to make each delivery port of distributive pipe equal not to the utmost like this to the vertical range at sand filter blanket top, accordingly, the loss of flood peak is also just different, and then causes the filter run of water distribution and current warp unequal.

The utility model content

In view of this, the utility model embodiment purpose is to provide water distribution uniform sand filter.

For achieving the above object, the utility model embodiment provides following technical scheme:

A kind of sand filter, comprise filtration system, the water knockout drum that described filtration system comprises lauter tub, sewage inducting tubes, is arranged in the sand filter blanket of lauter tub and places sand filter blanket, described water knockout drum comprises main water inlet tube and a plurality of distributive pipe, described main water inlet tube is connected with described sewage inducting tubes and described distributive pipe respectively, and the combined shaped of described distributive pipe is the umbrella stand type.

Preferably, also comprise the compressed air hose that is connected with described main water inlet tube.

Preferably, described compressed air hose is arranged on the described sewage inducting tubes, and is connected with described sewage inducting tubes.

Preferably, also be provided with valve on the described compressed air hose.

From above-mentioned technical scheme as can be seen, in the utility model embodiment, the combined shaped of distributive pipe is the umbrella stand type, the vertical range that can make each delivery port of distributive pipe and sand filter blanket top so about equally, and then reach water distribution evenly, the uniform purpose of filter run of current warp.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

The sand filter structural representation that Fig. 1 provides for the utility model embodiment;

Another structural representation of sand filter that Fig. 2 provides for the utility model embodiment;

The another structural representation of sand filter that Fig. 3 provides for the utility model embodiment;

The another structural representation of sand filter that Fig. 4 provides for the utility model embodiment.

The specific embodiment

For quote and know for the purpose of, hereinafter the technical term of Shi Yonging, write a Chinese character in simplified form or abridge and be summarized as follows:

The loss of flood peak: current overcome resistance to water-flow in motion process and the energy that consumes is called the loss of flood peak.

Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.

The utility model embodiment discloses the uniform sand filter of water distribution.

Fig. 1 shows a kind of structure of above-mentioned washed-out sand system, comprise filtration system, described filtration system comprises lauter tub 1, sewage inducting tubes 2, be arranged in the sand filter blanket 3 of lauter tub 1, place the water knockout drum of sand filter blanket 3, this water knockout drum comprises main water inlet tube 4 and a plurality of distributive pipe 5, main water inlet tube 4 is connected with sewage inducting tubes 2 and distributive pipe 5 respectively, the combined shaped of distributive pipe 5 is the umbrella stand type, and outlet pipe 6.In the present embodiment, main water inlet tube 4 is positioned at the top of distributive pipe 5, and in other embodiments, referring to Fig. 2, main water inlet tube 4 also can be positioned at the below of distributive pipe 5.

Above-mentioned sand filter operation principle is as follows:

During filtration, sewage enters main water inlet tube 4 from inlet tube 2, each delivery port from distributive pipe 5 enters sand filter blanket 3 again, through after the filtration of sand filter blanket 3, sewage changes clear water into, and clear water is poly-more many more on sand filter blanket 3, and water level goes up, when water level goes up to outlet pipe 6 places, will discharge outside the lauter tub 1 along outlet pipe 6.

As seen, the combined shaped of distributive pipe 5 is the umbrella stand type, and the circular cone side view at the side view of umbrella stand and sand filter blanket 3 tops is similar, suitably adjusting the folded angle of distributive pipe 5 and main water inlet tube 4, the vertical range that can make distributive pipe 5 each delivery port and sand filter blanket 3 tops about equally, the loss of flood peak is also roughly the same, so can reach water distribution evenly, the uniform purpose of filter run of current warp.

In another embodiment of the utility model, referring to Fig. 3, more than sand filter among all embodiment also can comprise the compressed air hose 7 that is connected with main water inlet tube 4.Compressed air hose 7 is connected with compressed-air actuated equipment is provided.Stop up (delivery port such as distributive pipe 5 is stopped up by the sand grains of sand filter blanket) in case serious filtration inequality appears in sand filter blanket 3 or filtrate is local, can introduce compressed air by compressed air hose 7, compressed air can stir sand filter blanket 3 consumingly, and then the problem of inequality or the local obstruction of filtrate (can be by Compressed Gas recoil cleaning filtrate, mediation is convenient) is filtered in solution.

In the present embodiment, compressed air hose 7 can be arranged on the sewage inducting tubes 2, and is connected with sewage inducting tubes 2.And sewage inducting tubes 2 is connected with main water inlet tube 4, and then compressed air hose 7 is connected with main water inlet tube 4 by sewage inducting tubes 2.Certainly, in other embodiments, compressed air hose 7 also can directly be connected with main water inlet tube 4, does not give unnecessary details at this.

In another embodiment of the utility model, referring to Fig. 4, also can be provided with the size of valve on the compressed air hose 7 with control compressed air air inflow, and then the stirring extent in the control lauter tub 1.

Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.

To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.

Claims (4)

1. sand filter, comprise filtration system, the water knockout drum that described filtration system comprises lauter tub, sewage inducting tubes, is arranged in the sand filter blanket of lauter tub and places sand filter blanket, described water knockout drum comprises main water inlet tube and a plurality of distributive pipe, described main water inlet tube is connected with described sewage inducting tubes and described distributive pipe respectively, it is characterized in that: the combined shaped of described distributive pipe is the umbrella stand type.

2. sand filter as claimed in claim 1 is characterized in that, also comprises the compressed air hose that is connected with described main water inlet tube.

3. sand filter as claimed in claim 1 is characterized in that described compressed air hose is arranged on the described sewage inducting tubes, and is connected with described sewage inducting tubes.

4. as claim 2 or 3 described sand filters, it is characterized in that, also be provided with valve on the described compressed air hose.

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