CN201524478U

CN201524478U - Front filter

Info

Publication number: CN201524478U
Application number: CN2009201979004U
Authority: CN
Inventors: 胡效军; 朱航海
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-09-27
Filing date: 2009-09-27
Publication date: 2010-07-14
Anticipated expiration: 2019-09-27

Abstract

The utility model discloses a front filter, which comprises a filter body, a filter screen framework (5) arranged inside the filter body, a filter screen and a drainage device fixedly arranged at the lower end of the filter body. The filter screen is fixedly arranged on the filter screen framework (5); and the filter screen comprises an outer filter screen (4) fixedly arranged on the outer wall of the filter screen framework (5) and an inner filter screen (6) fixedly arranged on the inner wall of the filter screen framework (5). The front filter has simple structure, and can effectively remove various impurities, resulting in more complete filtration. The front filter adopts two layers of filter screens, so as to improve the water purification treatment capacity of the system; and when the front filter is required to be cleaned after being used for a while, the use of the inner and the outer filter screens can result in more complete cleaning effect.

Description

Fore filter

Technical field

The utility model relates to a kind of filter, particularly a kind of fore filter.

Background technology

Running water arrives before each user through pipe network, has passed through a lot of pipelines, and there are impurity such as a lot of silt particles, iron rust, floating material in the pipeline the inside, can cause water to pollute as the words of not carrying out filtration treatment.Adopt fore filter to filter entering on the source of domestic water, can not only effectively eliminate secondary pollution, reduce the water pollution disease, and can remove solid impurity, protection pipeline security of system reduces the system maintenance expense.The fore filter of prior art comprises that both sides are provided with the filter cover of water inlet and delivery port, the cylindrical shell of fixedlying connected with filter cover, are installed in the interior filter screen skeleton of cylindrical shell, are fixedly mounted on the screen pack on the filter screen skeleton, and the cylindrical shell lower end is fixedly connected with drainage joint and the ball valve of handle is installed; But what this filter adopted is the individual layer filter screen, is easy to cause swimming solid obstruction screen cloth, thereby makes filter normally to use.

Summary of the invention

Technical problem to be solved in the utility model is: provide a kind of simple in structure, can effectively remove various impurity, filter fore filter more completely.

The technical scheme in the invention for solving the above technical problem is: a kind of fore filter comprises filter body, is installed in filter screen skeleton, the screen pack in the filter body and is fixedly installed in the drainage arrangement of filter body lower end; Described screen pack is fixedly mounted on the filter screen skeleton; Described screen pack comprises outer screen pack and inner filtration net, and described outer screen pack is fixedly installed in filter screen skeleton outer wall, and described inner filtration net is fixedly installed in the screen pack inboard wall of skeleton.

Compared with prior art, advantage of the present utility model is: this fore filter is simple in structure, can effectively remove various impurity, filters more thorough.It has adopted two-layer screen pack, accelerates the clean water treatment ability of system; When this fore filter has used a period of time to clean, adopt inside and outside two-layer filter screen also can make cleaning more thorough.

As preferably, the line of described outer screen pack footpath is thick, the order number is few; The line footpath of described inner filtration net is thin, the order number is many.Like this, its outer screen pack can stop big solid impurity earlier; Through outer infiltration, the inner filtration net only needs the little solia particle of adsorption filtration, filters more thorough.And because system's intake pressure is bigger, outer screen pack adopts thick line footpath filter net cloth, more can reduce the impact to system effectively, and the filtration of inner filtration net at this moment more can be filtered under a relative static environment.

Description of drawings

The structural representation of Fig. 1 the utility model fore filter (ball valve closed condition).

The structural representation of Fig. 2 the utility model fore filter (ball valve open mode).

Among Fig. 1-2: 1 filter cover, 2 water supply connectors, 3 cylindrical shells, 4 outer screen packs, 5 filter screen skeletons, 6 inner filtration nets, 7 draining sealing gaskets, 8 rubber blankets, 9 drainage joints, 10 ball valves, 11 handles, 12 water out adapters.

The specific embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is further described.

As shown in Figure 1, 2, a kind of fore filter comprises filter body, is installed in filter screen skeleton, the screen pack in the filter body and is fixedly installed in the drainage arrangement of filter body lower end.Filter body comprises filter cover 1, cylindrical shell 3; Filter cover 1 right side through hole internal thread is connected with water supply connector 2, and its PATENT left side via internal thread is connected with water out adapter 12, seals by the O RunddichtringO.Drainage arrangement comprises drainage joint 9 and the ball valve 10 of handle 11 is installed.

Cylindrical shell 3 upper ends are threaded with filter cover 1, and are sealed by the O RunddichtringO; Cylindrical shell 3 lower ends are fixedly connected with drainage joint 9 and are sealed by the O RunddichtringO; The ball valve 10 that handle 11 is installed is fixedly connected on drainage joint 9 lower ends by the sealing of O RunddichtringO, and snap ring is housed; Filter screen skeleton 5 is installed in the cylindrical shell 3, and screen pack is fixed on the filter screen skeleton 5, and screen pack comprises outer screen pack 4 and inner filtration net 6, and outer screen pack 4 is fixed in filter screen skeleton 5 outer walls, and inner filtration net 6 is fixedly installed in screen pack skeleton 5 inwalls; Be provided with draining sealing gasket 7 between filter screen skeleton 5 lower ends and the cylindrical shell 3; Filter screen skeleton 5 lower ends are provided with rubber blanket 8, and rubber blanket 8 is located between filter screen skeleton 5 and the drainage joint 12, play a part to cut off and support.

The outer screen pack of this fore filter 4 employing thick line footpaths, the screen pack that the order number is few can stop big solid impurity earlier; And inner filtration net 6 adopts fine line diameter, the close relatively screen pack of order number, and through outer infiltration, 6 on inner filtration net needs the little solia particle of adsorption filtration, filters more thorough like this.And because system's intake pressure is bigger, outer screen pack 4 adopts thick line footpath filter net cloth, more can reduce the impact to system effectively, and the filtration of inner filtration net 6 at this moment more can be filtered under a relative static environment.

During work, ball valve 10 is in closed condition.Running water filters by outer screen pack 4 earlier from water inlet and enters in the filter screen skeleton 5, and the fine-structure mesh through inner filtration net 6 penetrates into again, because filter screen skeleton 5 is hollow, running water flows out from delivery port by filter screen skeleton 5 backs.

When this fore filter has used a period of time to clean, only need open valve handle 11, open ball valve 10, because ductwork pressure is big, internal cavities has pressure reduction, the flow of water of delivery port must also will oppositely be washed screen pack inside, adopts the inside and outside two-layer filter screen also can be so that clean more thorough.

In the present embodiment, the material of filter cover 1 is a copper, and the material of cylindrical shell 3 is explosion-proof transparent plastic, and the material of inner filtration net 4, outer screen pack 6 is the food-grade stainless steel.

Below only be described, but can not be interpreted as it is restriction claim with regard to most preferred embodiment of the present utility model.The utility model not only is confined to above embodiment, and its concrete structure allows variation; Also can be as inside and outside screen pack by other form combinations; Deng.All various variations of being done in the protection domain of the utility model independent claims are all in the utility model protection domain.

Claims

1. fore filter comprises filter body, is installed in filter screen skeleton (5), the screen pack in the filter body and is fixedly installed in the drainage arrangement of filter body lower end; Described screen pack is fixedly mounted on the filter screen skeleton (5); It is characterized in that: described screen pack comprises outer screen pack (4) and inner filtration net (6), and described outer screen pack (4) is fixedly installed in filter screen skeleton (5) outer wall, and described inner filtration net (6) is fixedly installed in screen pack skeleton (5) inwall.

2. fore filter according to claim 1 is characterized in that: the line footpath of described outer screen pack (4) is thick, the order number is few; The line footpath of described inner filtration net (6) is thin, the order number is many.