CN222092703U

CN222092703U - Automatic back flushing filter

Info

Publication number: CN222092703U
Application number: CN202323359083.7U
Authority: CN
Inventors: 叶嘉添; 李志仁; 黄成浩; 李赛铭; 洪林常
Original assignee: Zhejiang Huayun Fluid Technology Co ltd
Current assignee: Zhejiang Huayun Fluid Technology Co ltd
Priority date: 2023-12-11
Filing date: 2023-12-11
Publication date: 2024-12-03
Anticipated expiration: 2033-12-11

Abstract

The utility model relates to the field of filter devices and discloses an automatic backwashing filter, which comprises a tank body, wherein a water inlet is formed in the front end of the tank body, a first installation block is fixedly connected to the rear end of the tank body, a cover plate is arranged at the rear end of the tank body, a second installation block is fixedly connected to the front end of the cover plate, a plurality of bolts are arranged on the side wall of the second installation block in a circumferential array, a handle is rotatably connected to the side wall of the tank body near the front end, a water outlet is fixedly connected to the side wall of the tank body near the rear end, a sewage outlet is fixedly connected to the other side wall of the tank body near the rear end, and a sewage draining valve is fixedly connected to the sewage outlet. According to the automatic back flushing filter, the butterfly valve is arranged to back flush water in the filter, so that the filter screen is effectively cleaned, meanwhile, the cover plate at the rear end of the tank body is utilized to replace the filter screen, and the service life of the whole device is effectively prolonged.

Description

Automatic back flushing filter

Technical Field

The utility model relates to the field of filter devices, in particular to an automatic back flushing filter.

Background

The Y-filters typically used in water filtration systems require periodic cleaning. Particularly in areas with poor water quality, low-pressure alarm or low-water flow alarm can occur due to filter blockage without long-time use. Because the filter needs to be frequently detached for cleaning, the filter is inconvenient to use and high in maintenance cost, and at present, the industry also has the filter with an automatic back flushing function.

In the prior art, although the filter filters impurities in water, the conventional filter usually solves the problems caused by electric control devices such as an electric valve, thus resulting in complex structure and higher production cost, and therefore, a person skilled in the art provides an automatic back flushing filter to solve the problems in the background art.

Disclosure of utility model

The utility model aims to solve the defects in the prior art, and provides an automatic back flushing filter, which is characterized in that a butterfly valve is arranged to back flush water in the filter, so that a filter screen is effectively cleaned, and meanwhile, a cover plate at the rear end of a tank body is utilized to replace the filter screen, so that the service life of the whole device is effectively prolonged.

The automatic backwashing filter comprises a tank body, wherein the front end of the tank body is provided with a water inlet, the rear end of the tank body is fixedly connected with a first installation block, the rear end of the tank body is provided with a cover plate, the front end of the cover plate is fixedly connected with a second installation block, the side wall of the second installation block is provided with a plurality of bolts in a circumferential array, the side wall of the tank body is rotatably connected with a handle near the front end, the side wall of the tank body is fixedly connected with a water outlet near the rear end, the other side wall of the tank body is fixedly connected with a drain outlet near the rear end, and a drain valve is fixedly connected in the drain outlet;

Through above-mentioned technical scheme, back flush is carried out to filter normal water through setting up the butterfly valve, and effectual filter screen is cleaned, utilizes the apron of jar body rear end simultaneously, realizes the change to the filter screen, holistic life of effectual extension device.

Further, a filter screen is arranged on the inner side wall of the tank body, a butterfly valve is rotationally connected to the inner side wall of the filter screen near the front end, a plurality of sleeves are circumferentially arrayed on the inner side wall of the cover plate, sliding rods are respectively and slidably connected to the inner side walls of the sleeves, springs are respectively sleeved on the outer side walls of the sleeves, and a baffle is fixedly connected to the other ends of the sliding rods;

Through the technical scheme, during normal operation, the butterfly valve is in an open state. The water to be treated is deposited near the sewage outlet by utilizing the principle of inertia after passing through the filter screen, the butterfly valve is in a valve closing state and the sewage valve is opened during back flushing, at the moment, water flow is forced to enter the interlayer between the outer side of the filter screen and the tank body from the mesh of the inlet section of the filter screen, and the impurities adhered on the inner side of the filter screen are reversely flushed from the outer side of the filter screen, so that the aim of cleaning the filter screen is fulfilled, and the flow rate of the water is increased after passing through the butterfly valve due to the closing of the butterfly valve, so that the back flushing effect is good.

Further, the upper end surface of the sewage outlet penetrates through the side wall of the tank body and is communicated with the inner side wall of the filter screen;

Through the technical scheme, impurities in the filter screen are effectively discharged through the sewage outlet.

Further, one end of the handle penetrates through the side wall of the tank body and is fixedly connected with the side wall of the filter screen and the top end of the butterfly valve;

through the technical scheme, the opening of the back flushing mode of the filter is effectively realized.

Further, the water outlet is communicated with the inside of the tank body;

through the technical scheme, the filtered water body is effectively discharged.

Further, a plurality of bolts penetrate through the second mounting block and are in threaded connection with the side wall of the first mounting block respectively, and a sealing gasket is arranged between the first mounting block and the second mounting block;

Through above-mentioned technical scheme, set up the apron at the rear end of jar body, fix apron and jar body through the bolt, be convenient for change the filter screen.

Further, the water inlet is communicated with the inside of the tank body;

through above-mentioned technical scheme, the effectual water and the device intercommunication.

The utility model has the following beneficial effects:

1. In the utility model, the butterfly valve is in an open state during normal operation. After passing through the filter screen, the water to be treated utilizes the principle of inertia to deposit fine particle impurities and suspended matters in the water near the sewage outlet due to the inertia effect.

2. In the utility model, during back flushing, the butterfly valve is in a valve closing state, the blow-off valve is opened, at the moment, water flow is forced to enter the interlayer between the outer side of the filter screen and the tank body from the mesh of the inlet section of the filter screen, and impurities adhered on the inner side of the filter screen are reversely flushed from the outer side of the filter screen cylinder, so that the aim of cleaning the filter screen is fulfilled.

3. According to the utility model, the cover plate is arranged at the rear end of the tank body, the cover plate and the tank body are fixed through the bolts, meanwhile, the filter screen in the tank body is of a detachable structure, the filter screen can be replaced by taking down the cover plate, and the sleeve and the spring are arranged in the cover plate, so that the filter screen can be effectively prevented from falling off in the working process, and the overall tightness of the device is effectively improved.

Drawings

FIG. 1 is a perspective view of an automatic backwash filter according to the present utility model;

FIG. 2 is a side view of an automatic backwash filter in accordance with the present utility model;

FIG. 3 is a front view of an automatic backwash filter according to the present utility model;

fig. 4 is a cross-sectional view of an automatic backwash filter according to the present utility model.

Legend description:

1. The water inlet, 2, a tank body, 3, a handle, 4, a water outlet, 5, a bolt, 6, a first mounting block, 7, a sleeve, 8, a second mounting block, 9, a cover plate, 10, a drain outlet, 11, a butterfly valve, 12, a filter screen, 13, a spring, 14, a slide bar, 15, a baffle plate, 16 and a drain valve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the automatic backwashing filter comprises a tank body 2, wherein a water inlet 1 is formed in the front end of the tank body 2, a first mounting block 6 is fixedly connected to the rear end of the tank body 2, a cover plate 9 is arranged at the rear end of the tank body 2, a second mounting block 8 is fixedly connected to the front end of the cover plate 9, a plurality of bolts 5 are arranged on the side wall of the second mounting block 8 in a circumferential array, a handle 3 is rotatably connected to the side wall of the tank body 2 near the front end, a water outlet 4 is fixedly connected to the side wall of the tank body 2 near the rear end, a sewage drain 10 is fixedly connected to the other side wall of the tank body 2 near the rear end, a sewage drain valve 16 is fixedly connected to the sewage drain 10, and a butterfly valve 11 is in an open state during normal operation. The water to be treated is filtered through the filter screen 12, fine particle impurities and suspended matters in the water are deposited near the sewage outlet 10 by utilizing the principle of inertia, during back flushing, the butterfly valve 11 is in a valve closing state, the sewage outlet valve 16 is opened, at the moment, water flow is forced to enter the interlayer between the outer side of the filter screen 12 and the tank body 2 from meshes of an inlet section of the filter screen 12, and the impurities adhered on the inner side of the filter screen barrel are reversely flushed from the outer side of the filter screen barrel, so that the aim of cleaning the filter screen 12 is fulfilled, and the flow rate of the water is increased after the butterfly valve 11 is closed, and the back flushing effect is good.

The jar body 2 inside wall is provided with filter screen 12, filter screen 12 inside wall is connected with butterfly valve 11 by the front end rotation, apron 9 inside wall is circumference array and has a plurality of sleeves 7, a plurality of sleeves 7 inside wall sliding connection has slide bar 14 respectively, a plurality of sleeves 7 lateral wall cover is equipped with spring 13 respectively, a plurality of slide bar 14 other end fixedly connected with baffle 15, the rear end at jar body 2 sets up apron 9, fix apron 9 and jar body 2 through bolt 5, filter screen 12 in jar body 2 is detachable structure simultaneously, can realize the change to filter screen 12 through taking down apron 9, and set up sleeve 7 and spring 13 in apron 9, can effectually prevent filter screen 12 emergence in the course of the work and drop, the holistic leakproofness of effectual improvement device.

The drain 10 up end runs through jar body 2 lateral wall and filter screen 12 inside wall intercommunication, and 3 one end of handle runs through jar body 2 lateral wall and filter screen 12 lateral wall and butterfly valve 11 top fixed connection, delivery port 4 and jar body 2 inside intercommunication, and a plurality of bolts 5 run through second installation piece 8 and first installation piece 6 lateral wall threaded connection respectively, and are provided with sealing washer between first installation piece 6 and the second installation piece 8, water inlet 1 and jar body 2 inside intercommunication.

The working principle is that the butterfly valve 11 is in an open state during normal operation. The water to be treated is deposited near the sewage outlet 10 by utilizing the principle of inertia after passing through the filter screen 12, the butterfly valve 11 is in a valve closing state and the sewage discharging valve 16 is opened during back flushing, at the moment, water flow is forced to enter the outer side of the filter screen 12 from meshes of an inlet section of the filter screen 12 and an interlayer of the tank body 2, and the impurities adhered on the inner side of the filter screen barrel are reversely flushed from the outer side of the filter screen barrel, so that the aim of cleaning the filter screen 12 is fulfilled, and as the butterfly valve 11 is closed, the flow rate of the water is increased after passing through the butterfly valve 11, the back flushing effect is good, the cover plate 9 is arranged at the rear end of the tank body 2, the cover plate 9 and the tank body 2 are fixed through the bolts 5, meanwhile, the filter screen 12 in the tank body 2 is in a detachable structure, the replacement of the filter screen 12 can be realized through the removal of the cover plate 9, and the sleeve 7 and the spring 13 are arranged in the cover plate 9, the filter screen 12 can be effectively prevented from falling off in the working process, and the sealing performance of the whole device is effectively improved.

It should be noted that the foregoing description is only a preferred embodiment of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it should be understood that modifications, equivalents, improvements and modifications to the technical solution described in the foregoing embodiments may occur to those skilled in the art, and all modifications, equivalents, and improvements are intended to be included within the spirit and principle of the present utility model.

Claims

1. The automatic back flushing filter comprises a tank body (2) and is characterized in that a water inlet (1) is formed in the front end of the tank body (2), a first installation block (6) is fixedly connected to the rear end of the tank body (2), a cover plate (9) is arranged at the rear end of the tank body (2), a second installation block (8) is fixedly connected to the front end of the cover plate (9), a plurality of bolts (5) are arranged on the side wall of the second installation block (8) in a circumferential array, a handle (3) is rotationally connected to the side wall of the tank body (2) near the front end, a water outlet (4) is fixedly connected to the side wall of the tank body (2) near the rear end, a sewage outlet (10) is fixedly connected to the other side wall of the tank body (2), and a sewage draining valve (16) is fixedly connected to the sewage outlet (10).

2. The automatic backwashing filter of claim 1, wherein a filter screen (12) is arranged on the inner side wall of the tank body (2), a butterfly valve (11) is rotatably connected to the inner side wall of the filter screen (12) near the front end, a plurality of sleeves (7) are arranged on the inner side wall of the cover plate (9) in a circumferential array, sliding rods (14) are respectively and slidably connected to the inner side walls of the sleeves (7), springs (13) are respectively sleeved on the outer side walls of the sleeves (7), and a baffle (15) is fixedly connected to the other ends of the sliding rods (14).

3. The automatic backwash filter according to claim 1, wherein the upper end surface of the sewage outlet (10) penetrates through the side wall of the tank body (2) and is communicated with the inner side wall of the filter screen (12).

4. The automatic backwash filter according to claim 1, wherein one end of the handle (3) penetrates through the side wall of the tank body (2) and the side wall of the filter screen (12) and is fixedly connected with the top end of the butterfly valve (11).

5. The automatic backwash filter according to claim 1, wherein the water outlet (4) is in communication with the interior of the tank (2).

6. The automatic backwash filter according to claim 1, wherein a plurality of bolts (5) penetrate through the second mounting blocks (8) and are connected with the side walls of the first mounting blocks (6) in a threaded manner, and sealing gaskets are arranged between the first mounting blocks (6) and the second mounting blocks (8).

7. The automatic backwash filter according to claim 1, wherein the water inlet (1) is in communication with the interior of the tank (2).