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Rainwater two-stage filtering device

A technology of secondary filtration and rainwater, applied in the direction of filtration separation, filtration loop, separation method, etc., can solve the problems of complex structure of filtration equipment, pollution, large amount of discarded water, etc.

Active Publication Date: 2011-10-19
FARMLAND IRRIGATION RES INST CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings existing in the prior art, and provide a rainwater secondary filter device, which solves the problems existing in the existing rainwater recovery process, such as pollution, large amount of discarded water, complex structure of filter equipment, etc.

Method used

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  • Rainwater two-stage filtering device
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  • Rainwater two-stage filtering device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Such as figure 1 , 2 As shown, a rainwater secondary filter device includes a filter part 1 and a stagnation part 2. The filter part 1 includes an outer shell 11 and an annular filter pipe 12; the top of the outer shell is provided with a water inlet 111, A water outlet 112 is provided at the bottom, and a filtered water outlet 113 is provided on the side wall at the bottom of the outer shell 11; the top and bottom of the annular filter tube 12 match the top and the bottom and are sealed and installed on the top and bottom of the outer shell 11, and the The water inlet 111 and the water outlet 112 of the outer casing 11 are facing the annular filter nozzle, and the diameter of the annular filter pipe 12 is larger than the diameter of the water inlet 111 and the water outlet 112 of the outer casing 11, and smaller than the diameter of the outer casing. The diameter of the body 11.

[0018] The annular filter pipe 12 includes an inner layer filter screen 121, an outer l...

Embodiment 2

[0021] The difference between this embodiment and Embodiment 1 is that the filter material 123 is quartz sand.

Embodiment 3

[0023] The difference between this embodiment and embodiment 1 or 2 is that the filter material 123 is a mixture of ceramsite, quartz sand and fiber balls.

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Abstract

The invention discloses a rainwater two-stage filtering device which comprises a filtering part and a retention part, wherein the filtering part comprises a shell body and a ring-shaped filtering pipe; a water inlet is arranged at the top of the shell body; a water outlet is arranged at the bottom of the shell body; a filtered water outlet is arranged on the side wall of the bottom of the shell body; the top and the bottom of the ring-shaped filtering pipe are arranged at the top and the bottom of the shell body in a matching and contacting way; the water inlet and the water outlet of the shell body face toward a pipe opening of the ring-shaped filtering pipe; the diameter of the pipe opening of the ring-shaped filtering pipe is larger than that of the water inlet and the water outlet of the shell body and is less than that of the shell body; the retention part is arranged below the shell body of the filtering part and is of a groove body structure which is matched with the shell bodyof the filtering part; and a sewage discharging outlet is arranged at the bottom of the groove body. The rainwater two-stage filtering device is mainly used for filtering and collecting the rainwater, has the advantages of simple structure, convenience for installation and good quality of outflow water and is applicable to a roof rainwater discharging pipeline system in the field of building water supply and drainage.

Description

technical field [0001] The invention relates to a filtering device, in particular to a rainwater secondary filtering device. Background technique [0002] China is one of the 13 countries in the world that are seriously short of water. With the rapid development of the national economy, the rapid growth of population and the improvement of people's living standards, industrial and urban domestic water use has increased significantly, and water resources have become increasingly tense. Only 0.28% of the fresh water resources on the earth can be used as domestic water, agricultural water and industrial water to meet human needs. Due to the uneven distribution of water resources in time and space, coupled with the irrational development and utilization of water resources and the serious waste of human beings, as well as the aggravation of water pollution in the process of urbanization and industrialization, etc., the contradiction of water use has become more and more prominent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D36/04
Inventor 宰松梅仵峰郭冬冬冯俊杰范永申
Owner FARMLAND IRRIGATION RES INST CHINESE ACAD OF AGRI SCI
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