CN219652839U - Tap water production filtration system - Google Patents

Abstract

The utility model belongs to the technical field of tap water production, and particularly relates to a tap water production filtering system, a coagulation tank and a filtering tank; wherein the coagulation tank is of a cylindrical tower structure, and a reaction tank and a sedimentation tank which are mutually communicated are arranged in the coagulation tank; the filter tanks are circumferentially arranged at the periphery of the top of the coagulation tank and are communicated with the sedimentation tank; the filter tank is internally provided with a sand filtering surface, and the top of the sand filtering surface is provided with a backwash water gap. The utility model can solve the problem that the impact force near the backwashing port cannot be uniformly dispersed to the corner at the edge of the backwashing port, and the dead angle of backwashing is difficult to ensure, thus having good market application prospect.

Description

Tap water production filtration system

Technical Field

The utility model belongs to the technical field of tap water production, and particularly relates to a tap water production filtering system.

Background

In the traditional equipment process, the area of a single filter tank is about 30 square meters, the distance between the sand filtering surface and a central backwashing port is 1-4 meters, the distance between the center of the sand filtering surface and the edge corner of the sand filtering surface is greatly different from the backwashing port, so that the edge corner cannot be backwashed thoroughly, the sewage receiving capacity is reduced, meanwhile, the sludge is slowly deposited and agglomerated, the effective filtering area is gradually reduced, the backwashing frequency of the filter tank is increased due to vicious circle, and the total backwashing water quantity is increased by 4-10 times. Each backwash is equivalent to shaking the sand filter, the sand filter is not thoroughly cleaned, the turbidity of the short-term water outlet is high after the backwash is normally operated, the water with frequent backwash is mixed into a clean water tank, the water quality can not reach the standard naturally, and the sand filter can only be replaced frequently.

Because the quantity of the filter tanks is limited, the water yield in each backwashing is only 50-70% of the normal running water yield, the water production quantity is greatly reduced, and the water production safety is affected. Some processes are improved on the basis of the traditional processes, and a siphon system is changed into a steam-water mixed backwashing system, so that the improvement can solve the cleaning problem. However, a series of equipment such as a backwash pump, an air compressor, a backwash water tank and the like are required to be added in the transformation, so that the investment and operation cost is greatly increased, and meanwhile, new requirements on operation and overhaul are also provided, and the difficulty is increased.

The patent of application number CN202221149400.5 discloses a compound type complete set high-efficiency water purification system, be equipped with the reaction tank in this use novel open cell body, sedimentation tank and filtering ponds, through mixing high turbidity raw water and medicament, high turbidity raw water gets into in the reaction tank of cell body through the pipeline for high turbidity raw water and medicament take place flocculation reaction in the reaction tank, high turbidity raw water after flocculation gets into in the sedimentation tank, deposit impurity through a plurality of mud hoppers of locating the sedimentation tank bottom, clear water after the sediment gets into the filtering ponds, set up compound filtration system through a plurality of intervals, carry out the secondary filtration with the clear water, clear water after the filtration gets into in the filtering ponds through the pipeline, sedimentation efficiency and impurity's removal effect have been improved to a great extent. However, the filtering tank has the same problems as the traditional equipment process, the impact force near the backwashing port cannot be uniformly dispersed to the corner at the edge of the backwashing port, and no dead angle of backwashing is difficult to ensure, so that the backwashing frequency is required to be increased, and the backwashing water amount is easy to waste.

The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.

Disclosure of Invention

The utility model aims to provide a tap water production and filtration system, which aims to solve the problems that the impact force near a backwashing port cannot be uniformly dispersed to the corner at the edge of the backwashing port, and the dead angle of backwashing is difficult to ensure.

In order to achieve the above object, the present utility model provides the following technical solutions:

the tap water production and filtration system comprises a coagulation tank and a filtration tank; wherein,,

the coagulation tank is of a cylindrical tower structure, and a reaction tank and a sedimentation tank which are mutually communicated are arranged in the coagulation tank;

the filter tanks are circumferentially arranged at the periphery of the top of the coagulation tank and are communicated with the sedimentation tank; the filter tank is internally provided with a sand filtering surface, and the top of the sand filtering surface is provided with a backwash water gap.

Preferably, the sand filtering surface is 1-1.9m away from the backwashing water gap.

Compared with the prior art, the utility model has the following beneficial effects: according to the tap water production and filtration system, the angle of the sand filtering surface to the most edge of the backwashing port is only 1.9m, the difference between the sand filtering surface and the angle of the most edge of the backwashing port is not great, the impact force near the backwashing port can be uniformly dispersed to the angle of the more edge of the backwashing port, so that no dead angle is caused by backwashing, the backwashing is thorough, the sewage receiving capacity of the filter tank after backwashing is greatly improved, the backwashing frequency can be reduced, the backwashing water quantity is saved, and the service life of the sand filtering is prolonged.

Drawings

FIG. 1 is a top view of the present utility model;

FIG. 2 is a schematic illustration of the present utility model with a filter tank backwash;

the main reference numerals illustrate:

1. a coagulation pool; 2. a filtering tank; 3. a reaction tank; 4. and (3) a sedimentation tank.

Detailed Description

The following description of the embodiments of the present utility model will be apparent from the description of the embodiments of the present utility model, which is provided in part, but not in whole. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.

In the description of the present utility model, it should be noted that, as the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used for convenience of description and simplicity of description, only as to the orientation or positional relationship shown in the drawings, and not as an indication or suggestion that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.

In the description of the present utility model, it should be noted that unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be connected between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases to those skilled in the art.

Referring to fig. 1-2, a tap water production filtration system comprises a coagulation tank 1 and a filtration tank 2; wherein,,

the coagulation tank 1 is of a cylindrical tower structure, and a reaction tank 3 and a sedimentation tank 4 which are mutually communicated are arranged in the coagulation tank;

the filter tank 2 is circumferentially arranged at the periphery of the top of the coagulation tank 1 and is communicated with the sedimentation tank 4; the filter tank 2 is internally provided with a sand filtering surface, and the top of the sand filtering surface is provided with a backwashing water gap.

In the embodiment, the number of the filter tanks 2 is increased, the area of the filter tank is reduced, the area of a single filter tank 2 is 5 square meters, the distance between the sand filtering surface and the backwash opening is 1 to 1.9 meters, and as the distance between the sand filtering surface and the corner of the most edge of the backwash opening is only 1.9 meters, the difference between the sand filtering surface and the corner of the most edge of the backwash opening is not large, the impact force near the backwash opening can be uniformly dispersed to the corner of the more edge of the backwash opening, so that no dead angle is caused in backwash, the backwash is thorough, the sewage receiving capacity of the filter tank after backwash is greatly improved, the backwash frequency is reduced, the backwash water amount is integrally saved by 4 to 10 times, and the service life of the sand filtering is prolonged by more than 3 times. The water production amount is over 90% of the normal water amount during backwashing, so that the water production is hardly affected, and the stability and safety of the water production are ensured.

According to the tap water production and filtration system, a siphon system is not required to be changed into a steam-water mixed backwashing system, and the impact force near a backwashing port can be uniformly dispersed to the corner at the edge of the backwashing port under the condition that a series of equipment such as a backwashing pump, an air compressor, a backwashing water tank and the like is not added, so that no dead angle is caused in backwashing, the investment running cost is greatly reduced, and the tap water production and filtration system is very practical and has a good market application prospect.

The foregoing descriptions of specific exemplary embodiments of the present utility model are presented for purposes of illustration and description. It is not intended to limit the utility model to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the utility model and its practical application to thereby enable one skilled in the art to make and utilize the utility model in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the utility model be defined by the claims and their equivalents.

Claims (2)

1. The tap water production and filtration system is characterized by comprising a coagulation tank and a filtration tank; wherein,,

the coagulation tank is of a cylindrical tower structure, and a reaction tank and a sedimentation tank which are mutually communicated are arranged in the coagulation tank;

the filter tanks are circumferentially arranged at the periphery of the top of the coagulation tank and are communicated with the sedimentation tank; the filter tank is internally provided with a sand filtering surface, and the top of the sand filtering surface is provided with a backwash water gap.

2. Tap water producing filter system according to claim 1, wherein the sand screen is 1-1.9m from the backwash water gap.