CN201558585U

CN201558585U - Filter tank structure

Info

Publication number: CN201558585U
Application number: CN2009202706894U
Authority: CN
Inventors: 施世英
Original assignee: XIAMEN FEIHUA ENVIRONMENT PROTECTIVE MATERIAL Co Ltd
Current assignee: XIAMEN FEIHUA ENVIRONMENT PROTECTIVE MATERIAL Co Ltd
Priority date: 2009-11-23
Filing date: 2009-11-23
Publication date: 2010-08-25
Anticipated expiration: 2019-11-23

Abstract

The utility model discloses a filter tank structure comprising a tank body, and a filter medium layer, a bearing layer and a shaped pipe which are arranged in the tank body. An air pump is arranged in the middle of the tank body, and the air pump is connected with an air pipe and matched with the shaped pipe. Through holes are distributed on the shaped pipe. An air distributing branch pipe extending to the rear end of the shaped pipe is sheathed in the shaped pipe, vent holes are distributed on the air distributing branch pipe, the front end of the shaped pipe is connected with a water purifying pipeline by a water distributing branch pipe, and the front end of the air distributing branch pipe is connected with the air pipe. As the air distributing branch pipe extending across the shaped pipe is arranged in the filter tank, the whole bearing layer and the whole filter medium layer above the shaped pipe are uniformly pressurized and washed by back washing air current through the vent holes arranged on the air distributing branch pipe, and the back washing of the whole filter tank is ensured. Back washing dead corner phenomena due to the uneven distribution of air current pressure can not occur, and the filtering quality of the whole filter tank is ensured.

Description

A kind of filter tank structure

Technical field

The filter tank structure that the relevant a kind of running water of the utility model is handled.

Background technology

The filtering ponds of traditional waterworks, be to be equipped with a plurality of type pipes in pond body bottom, above the type pipe, supporting layer is set, and the supporting layer top is a filter material layer, the water that needs to filter is introduced into the filter material layer top, the filtration of the bed of material is after filtration drawn through entering the type pipe behind the supporting layer again, finishes filter action with this.This filter material layer is to adopt filter sand, and supporting layer adopts cobblestone, for preventing to ooze under the filter sand, this supporting layer must be provided with enough thickness, because to the requirement of tap water filter standard, the height of filtrate must satisfy certain size, so, for traditional filtering ponds, the height of water level that injects certainly will be limited, and especially for the filter tank of old-fashioned transformation, the height of cell cavity is limited, water-head limited then can't be improved the efficient of water filtration;

In addition, after filtering ponds use a period of time, the impurity of holding back in the filtrate, need carry out backwash to supporting layer and filtrate and can filter work normally, existing filtering ponds back-flushing structure, be to be connected to tracheae in the exit of type pipe, during backwash, be in the type pipe, to inflate pressurization by tracheae, make current be flowed to the filter material layer direction by supporting layer, the sewage after will being washed by the sewage draining exit that is positioned at top, filter tank is again discharged, because tracheae is to connect the exit that is located at the type pipe, air-flow and pressure at contiguous tracheae place are bigger, and can reduce gradually to the air-flow away from type pipe exit, when backwash is worked, the dead angle of backwash can appear therefore, promptly supporting layer and the filtrate away from type pipe exit can't effectively carry out backwash, and therefore the filtering ponds after long-term the use can reduce the filter quality to water.

The utility model content

Main purpose of the present utility model provides a kind of filter tank structure that can effectively guarantee the filter quality.

Secondary objective of the present utility model provides a kind of filter tank structure that improves water filtration efficient under the condition in old filter tank.

For achieving the above object, solution of the present utility model is:

A kind of filter tank structure comprises the pond body, places filter material layer, supporting layer and the type pipe of Chi Tizhong, is provided with air pump at the middle part of pond body, and air pump connects tracheae and cooperates with the type pipe; Through hole distributes on the type pipe; Wherein: be equipped with in the type pipe to the distribution arm of type pipe rear end, be distributed with passage on the distribution arm, type pipe front end is connected with the water purification pipeline by range pipe, and the front end of distribution arm is connected with tracheae.

Described supporting layer is a filter.

After adopting such scheme, owing to be provided with in the utility model filter tank and stretch the distribution arm that places whole type pipe, the distribution arm can carry out pressure flush to the whole supporting layer and the filter material layer of type pipe top with the air-flow of backwash uniformly by the passage that distributes on it, to guarantee the backwash in whole filter tank, the backwash dead angle phenomenon that can occur owing to the stream pressure skewness has not so guaranteed the filter quality in whole filter tank.

In addition, adopt and commonly use the filter that the cobblestone supporting layer reduces highly relatively, can increase the height of water level of filtrate top filtered water, the raising of water-head can effectively improve the flow velocity of water filtration, therefore improves the operating efficiency of water filtration.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the vertical view of the utility model type pipe.

The specific embodiment

As shown in Figure 1, 2, a kind of filter tank structure that the utility model discloses, it comprises pond body 1, places the filter material layer 2 of pond body 1, supporting layer 3 and type pipe 4, is provided with air pump 5 at the middle part of pond body 1, and air pump 5 connects tracheae 51 and cooperates with type pipe 4; Filter material layer 2 is a filter sand; Be distributed with through hole 40 on the type pipe 4;

Key of the present utility model is: be equipped with in type pipe 4 to the distribution arm 41 of type pipe 4 rear ends, be distributed with passage on the distribution arm 41, type pipe 4 front ends are connected with the water purification pipeline by range pipe 42, and the front end of distribution arm 41 is connected with tracheae 51.

Supporting layer 3 adopts height much smaller than the filter of commonly using the cobblestone layer height.

The filtering ponds of this structure, when carrying out backwash work, air pump 5 is by tracheae 51 forced air in distribution arm 41, because this distribution arm 41 is to stretch to place whole type pipe 4, then distribution arm 41 carries out pressure flush to the whole supporting layer 3 of type pipe 4 tops with filter material layer 2 uniformly by the passage that distributes on it, to guarantee the backwash in whole filter tank, the backwash dead angle phenomenon that can occur owing to the stream pressure skewness has not so guaranteed the filter quality in whole filter tank.

And adopt the filter that highly reduces, and then can increase the height of water level of filtrate 2 top filtered water, the raising of water-head can effectively improve the flow velocity of water filtration, therefore improves the operating efficiency of water filtration.

Claims

1. filter tank structure comprises the pond body, places filter material layer, supporting layer and the type pipe of Chi Tizhong, is provided with air pump at the middle part of pond body, and air pump connects tracheae and cooperates with the type pipe; Through hole distributes on the type pipe; It is characterized in that: be equipped with in the type pipe to the distribution arm of type pipe rear end, be distributed with passage on the distribution arm, type pipe front end is connected with the water purification pipeline by range pipe, and the front end of distribution arm is connected with tracheae.

2. a kind of filter tank as claimed in claim 1 structure is characterized in that: supporting layer is a filter.