CN218529909U

CN218529909U - Automatic back flush filter equipment

Info

Publication number: CN218529909U
Application number: CN202222529809.6U
Authority: CN
Inventors: 杨杰; 阮水; 张勋
Original assignee: Huaneng Lancang River Hydropower Co Ltd
Current assignee: Huaneng Lancang River Hydropower Co Ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2023-02-28
Anticipated expiration: 2032-09-23

Abstract

The utility model provides an automatic back flush filter equipment, including the casing of its interior zone cavity, the water inlet is established at the casing top, the filtrating export is established to the bottom, the precoat is established to the cavity lower part, its characterized in that casing top is equipped with the ball-cock assembly, upper portion one side is equipped with the high-order export of backwash water, middle part one side is equipped with the low-order export of backwash water of taking the control valve, be equipped with down the backwash water pipe in the cavity of lower part, this time backwash water outside of tubes end passes the casing wall extroversion and extends the back and link to each other with backwash water tank delivery port, backwash water tank water inlet links to each other through the high-order export of backwash water of last backwash water pipe and casing upper portion one side of taking the filter. The automatic backwashing filter has the advantages that the automatic backwashing filter can be carried out on the filter material layer when the filter material layer absorbs enough dirt to block the filtering process, the structure is simple, the filtering effect is good, the backwashing on the filter material can be automatically completed without taking out the filter material, the energy is saved, the outward pollution discharge is avoided, and the environment protection is facilitated.

Description

Automatic back flush filter equipment

Technical Field

The utility model relates to a filter equipment, especially a can accomplish filter equipment of back flush automatically belongs to filtering separation technical field.

Background

Most of the currently used backwashing filter devices clean the filter particles in the filter device through high-pressure water, and although the backwashing filter devices have a high backwashing effect, the energy consumption is high and water resources are wasted. The back washing is carried out by using a siphon principle, but equipment needs to be made very high and large, the occupied space is large, and the maintenance difficulty is increased. And off-line backwashing, namely taking out the particles for filtering from the filtering device and conveying the particles to a cleaning place for cleaning, not only wastes labor and time, but also has low working efficiency. Therefore, there is a need for improvements in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a labour saving and time saving's automatic back flush filter equipment to realize continuous production and need not to shut down the washing.

The utility model discloses a following technical scheme accomplishes: an automatic back-flushing filtering device comprises a shell with a cavity therein, wherein the top of the shell is provided with a water inlet, the bottom of the shell is provided with a filtrate outlet, and the lower part of the cavity is provided with a filter material layer; when the filter material layer adsorbs enough dirt to block the filtering process, the water entering the cavity of the shell is increased, so that the water level rises to the high-level outlet of the backwash water, the water enters the backwash water tank through the upper backwash water pipe with the filter to form a backwash water source, the backwash water is sent to the bottom of the cavity of the shell through the water outlet of the backwash water tank and the lower backwash water pipe to backwash the filter material layer, and the flushing water is discharged through the low-level outlet of the backwash water in the middle of the shell to realize the automatic backwash of the filter material layer.

And a water outlet valve and a pressure increasing valve are arranged on the pipe section at the outer end of the lower backwashing water pipe and between the water outlets of the backwashing water tanks, and are used for increasing water pressure while controlling water yield and improving backwashing effect.

And a plurality of through holes are formed in the upper side of the pipe wall at the inner end of the lower back-flushing pipe to form a back-flushing water outlet so as to carry out back flushing on the filter material layer at the upper part.

A filtrate pipe is arranged at the bottom of the cavity of the shell, a plurality of through holes are arranged on the upper side of the pipe wall at the inner end of the filtrate pipe, and the outer end of the filtrate pipe penetrates through a filtrate outlet on the shell wall to extend outwards and then is connected with a drain pipe, so that the filtered filtrate is discharged to a water storage tank for recycling.

The back flushing water low-level outlet in the middle of the shell is connected with a back flushing water drainage pipe with a control valve so as to merge the back flushing water into the water to be filtered.

The utility model has the advantages of it is following and effect: by adopting the technical scheme, when the filtration treatment of the water to be filtered is conveniently finished, when the filter material layer adsorbs enough dirt to block the filtration process, the water entering the cavity of the shell automatically enters the backwash water tank through the upper backwash water pipe with the filter to form a backwash water source, and then is sent to the bottom of the cavity of the shell through the water outlet of the backwash water tank and the lower backwash water pipe to backwash the filter material layer, and flushing fluid is discharged through the lower outlet of the backwash water in the middle of the shell to realize the automatic backwash of the filter material layer.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed description of the invention

The present invention will be further described with reference to the accompanying drawings.

The utility model provides an automatic back flush filter equipment, including the casing 10 of taking the cavity in it, water inlet 12 is established at casing 10 top, the bottom is established the filtrating export 16, the precoat 3 is established to the cavity lower part, wherein: the top of the shell 10 is provided with a ball float valve 11, the right side of the upper part is provided with a high-level back flushing outlet 9, the left side of the middle part is provided with a low-level back flushing outlet 15 with a control valve 14, a lower back flushing pipe 2 is arranged in a cavity of the lower part, the outer end of the lower back flushing pipe 2 penetrates through the outer part of the shell wall to extend and then is connected with a water outlet of a back flushing water tank 6, and a water inlet of the back flushing water tank 6 is connected with the high-level back flushing outlet 9 on the right side of the upper part of the shell 10 through an upper back flushing pipe 8 with a filter 7;

a water outlet valve 5 and a pressure increasing valve 4 are arranged on a pipe section, which is positioned between the water outlets of the back flushing water tank 6, at the outer end of the lower back flushing pipe 2, and are used for controlling the water yield and increasing the water pressure at the same time, so that the back flushing effect is improved;

a plurality of through holes are formed in the upper side of the pipe wall at the inner end of the lower backwashing water pipe 2 to form a backwashing water outlet so as to perform backwashing on the upper filter material layer 3;

a filtrate pipe 1 is arranged at the bottom of the cavity of the shell 10, a plurality of through holes are arranged on the upper side of the pipe wall at the inner end of the filtrate pipe 1, and the outer end of the filtrate pipe passes through a filtrate outlet 16 on the wall of the shell 10 and extends outwards to be connected with a drain pipe, so that the filtered filtrate is discharged to a water storage tank for recycling;

a backwash low level outlet 15 in the middle of the housing 10 is connected to a backwash water drain 13 with a control valve 14 to merge the backwash water into the water to be filtered.

When the water filter works, water to be filtered is fed into the cavity of the shell 10 from the water inlet 12, is adsorbed and filtered by the filter material layer 3 in the cavity, and is discharged from the filtrate outlet 16 to finish conventional filtration; when the filter material layer 3 adsorbs enough dirt to block the filtering process, the water entering the cavity of the shell 10 can be increased, so that the water level rises to the high-level outlet 9 of the backwash water, the water enters the backwash water tank 6 through the upper backwash water pipe 8 with the filter 7 to form a backwash water source, then the water passes through the water outlet of the backwash water tank 6 and the lower backwash water pipe 2, the water is pressurized through the pressurization valve 4 and then is sent to the bottom of the cavity of the shell 10, the filter material layer 3 is backwashed, the flushing liquid is discharged through the low-level outlet 15 of the backwash water in the middle of the shell 10, the automatic backwashing of the filter material layer is realized, and the backwash water level A and the water level B of water to be filtered are controlled through the ball float valve 11.

Claims

1. An automatic back-flushing filtering device comprises a shell with a cavity therein, wherein the top of the shell is provided with a water inlet, the bottom of the shell is provided with a filtrate outlet, and the lower part of the cavity is provided with a filter material layer.

2. The automatic backwashing filter of claim 1, wherein a water outlet valve and a pressure increasing valve are arranged on a pipe section at the outer end of the lower backwashing water pipe and between the water outlets of the backwashing water tanks.

3. The automatic backwashing filter of claim 1, wherein the upper side of the pipe wall at the inner end of the lower backwashing water pipe is provided with a plurality of through holes to form a backwashing water outlet.

4. The automatic backwash filter device according to claim 1, wherein a filtrate pipe is provided at the bottom of the hollow chamber of the housing, the filtrate pipe has a plurality of through holes on the upper side of the inner wall of the filtrate pipe, and the outer end of the filtrate pipe extends outward through the filtrate outlet of the housing wall and is connected to a drain pipe.

5. The automatic backwash filter device according to claim 1, wherein the backwash water low-level outlet in the middle of the housing is connected to a backwash water drain pipe having a control valve.