CN202724808U

CN202724808U - Backwash filter device

Info

Publication number: CN202724808U
Application number: CN 201220418659
Authority: CN
Inventors: 叶忠; 黄建兵; 蔡后斌
Original assignee: Sichuan High Accurate Purification Equipment Co Ltd
Current assignee: Sichuan High Accurate Purification Equipment Co Ltd
Priority date: 2012-08-22
Filing date: 2012-08-22
Publication date: 2013-02-13
Anticipated expiration: 2022-08-22

Abstract

The utility model provides a backwash filter device, comprising a rotating force arm 1, a cleaning cavity 2, a filter component 3, a water distribution plate 4, a sewage-draining and cleaning device 5 and a liquid inlet cavity 6, wherein the rotating force arm 1 is arranged on the top of the filter device; the cleaning cavity 2 is formed in the filter device; the filter component 3 is arranged in the cleaning cavity 2; the water distribution plate 4 is connected to the lower end of the filter component 3; the sewage-draining and cleaning device 5 is connected to the other end of the water distribution plate 4; the liquid inlet cavity 6 is formed on the side surface of the filter device; and the liquid inlet cavity 6 is communicated with the cleaning cavity 2. The backwash filter device provided by the utility model can be used for effectively washing impurities embedded in a filter hole; the washing process does not require power; and thinner and more filter screens can be adopted to obtain a purer filter medium.

Description

A kind of back-flushing filtering device

Technical field

The utility model relates to a kind of sewage disposal device, relates in particular to a kind of back-flushing filtering device.

Background technology

Water conservation and using water wisely, alive closely bound up with people pupil, and the recycling of water resource is particularly important.Water for industrial use, air-conditioning cooling circulating water, carwash circulating water, boiler feed water, bathing pool, swimming pool water, chemical pharmaceutical water, well water, river etc., all need to carry out the filtration treatment of water, it is the only way which must be passed of water resource recycling, because the method that tradition is filtered with chemical substance seldom adopts, mostly adopt physical cleaning method filter, remove the middle impurity that anhydrates by the mechanical filter principle.Mechanical filter is the most frequently used equipment, traditional mechanical filter, medium is finished filtration through filter opening to the filter screen outside from the filter screen inner chamber, and in this process, foreign material are deposited on filter screen bottom or invest on the filter screen inwall, the foreign material that are slightly larger than filter opening then are embedded in the filter opening, when opening bleeder valve (or lower cover), medium can be deposited on the foreign material of filter screen bottom by venting, but can not wash away the foreign material that adhere to or embed, because this moment, medium was still from inside to outside the direction of exerting pressure of filter screen, continue to compress.Gradually along with the increase of adhering on the filter screen with insert, the circulation area of filter screen can reduce, and the flow resistance of filter increases, until block, produces simultaneously secondary pollution, causes changing filter screen and the increase expense.For addressing this problem, the most original method is to take out filter core to carry out manual cleaning, workload is large, cleaning quality do not guarantee, and is too much for avoiding wash number, has to adopt than the large mesh filter screen yet, but filtering accuracy is low, also have and adopt two filters that are used alternatingly that switch in parallel, because the filter screen flow area changes before and after switching, easily cause equipment breakdown.

The utility model content

The utility model provides a kind of back-flushing filtering device, its objective is to solve the prior art defective, provides a kind of need the interruption to filter the back-flushing filtering device of sewage backwash mechanism.

The technical scheme that the utility model is dealt with problems is:

The utility model provides a kind of back-flushing filtering device, comprising: rotate the arm of force 1, cleaning chambers 2, filter element 3, minute water plate 4, blowdown cleaning device 5 and admission chamber 6; Wherein, the described rotation arm of force 1 is arranged on the filter top, cleaning chambers 2 is inner at filter, filter element 3 is located at cleaning chambers 2 inside, the lower end of filter element 3 is connecting divides water plate 4, divide the other end of water plate 4 connecting blowdown cleaning device 5, admission chamber 6 is located at the side of filter, and described admission chamber 6 is communicated with cleaning chambers 2.

Usefulness of the present utility model is:

Compared with prior art, the unique simple mechanism design of the utility model operates to change the media flow path by easy keying, make that medium flows to inner chamber from the filter screen outer wall when filtering, and when flushing MEDIA FLOW oppositely rush at filter screen from the filter screen inner chamber, can effectively make the impurity that is attached to screen wall and the embeds filter opening discharge that comes off, the impeller of rotation converts the hydraulic energy of medium to the kinetic energy of liquid stream, rotate the directive filter screen with the speed that is several times as much as flow rate of pipelines from 360 ° at impeller nozzle, produce enough large flushing ability, guarantee within time several seconds, to remove the foreign material on the filter screen, flushing process need not to dispose power, be specially adapted to family expenses and commercial water filter, can adopt thinner, the more filter screen of number to obtain purer filter medium, is removed the expense of changing filter screen from.

Description of drawings

Fig. 1 is the structure chart of the utility model back-flushing filtering device;

Comprise among the figure: rotate the arm of force 1, cleaning chambers 2, filter element 3, minute water plate 4, blowdown cleaning device 5 and admission chamber 6.

The specific embodiment

As shown in Figure 1, the utility model provides a kind of back-flushing filtering device, comprising: rotate the arm of force 1, cleaning chambers 2, filter element 3, minute water plate 4, blowdown cleaning device 5 and admission chamber 6; Wherein, the described rotation arm of force 1 is arranged on the filter top, cleaning chambers 2 is inner at filter, filter element 3 is located at cleaning chambers 2 inside, the lower end of filter element 3 is connecting divides water plate 4, divide the other end of water plate 4 connecting blowdown cleaning device 5, admission chamber 6 is located at the side of filter, and described admission chamber 6 is communicated with cleaning chambers 2.

During the normal operation of the utility model filter, unfiltered liquid from entrance through admission chamber, divide each aperture of water plate to flow to the inner surface of respectively organizing filter core, solid phase impurity is trapped within the inner surface of each filter core, liquid after the filtration converges to cleaning chambers and discharges from outlet, growth along with filtration time, the solid phase impurity that is attached to the filter core inner surface will increase, rate of discharge will reduce, import pressure reduction will increase, at this moment tackle filter element and carry out backwash, otherwise the continuation along with filtration time, rate of discharge namely exports anhydrous outflow with vanishing, and the pressure of entrance all acts on the filter core simultaneously, filter core therefore may be damaged, affects the normal use of manual filter.When the needs backwash, at first open the manual blowdown valve, mention the backstay that rotates on the arm, the rotation manual arm drives simultaneously the sewage backwash device and rotates certain angle, is locked in the trepanning of location with backstay, at this moment one group of filter core begins recoil, the recoil certain hour is discharged impurity from sewage draining exit, according to top-operation, after the rotation arm rotates a circle, each is organized filter core and all obtains flushing once, then closes sewage draining valve, finishes a backwash job.

For making any technical staff in this area realize or to use the utility model, the above is described disclosed embodiment.To those skilled in the art; The various alter modes of these embodiment all are apparent, and the General Principle of this paper definition also can be applicable to other embodiment on the basis that does not break away from spirit of the present disclosure and protection domain.Therefore, the disclosure is not limited to the embodiment that this paper provides, but consistent with the widest scope of the disclosed principle of the application and novel features.

Claims

1. a back-flushing filtering device comprises: rotate the arm of force (1), cleaning chambers (2), filter element (3), minute water plate (4), blowdown cleaning device (5) and admission chamber (6); It is characterized in that, the described rotation arm of force (1) is arranged on the filter top, cleaning chambers (2) is inner at filter, filter element (3) is located at cleaning chambers (2) inside, the lower end of filter element (3) is connecting divides water plate (4), divide the other end of water plate (4) connecting blowdown cleaning device (5), admission chamber (6) is located at the side of filter, and described admission chamber (6) is communicated with cleaning chambers (2).