CN216366974U

CN216366974U - Cleaning device for circulating water filter

Info

Publication number: CN216366974U
Application number: CN202122740444.7U
Authority: CN
Inventors: 刘永; 田凤明
Original assignee: Lihuayi Lijin Refining and Chemical Co Ltd
Current assignee: Lihuayi Lijin Refining and Chemical Co Ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-04-26
Anticipated expiration: 2031-11-10

Abstract

The utility model relates to the technical field of filtering equipment, in particular to a cleaning device of a circulating water filter, which comprises a first filter and a second filter, wherein the first filter and the second filter are symmetrically arranged; the front end of the filter I is respectively connected with a concentric backwashing blowdown valve I and an inlet valve I through a tee joint, and the rear end of the filter I is connected with an outlet valve I; the front end of the second filter is respectively connected with a second concentric backwashing blowdown valve and a second inlet valve through a tee joint, and the rear end of the second filter is connected with a second outlet valve; the other ends of the first inlet valve and the second inlet valve are connected with a water inlet main pipe, and the other ends of the first outlet valve and the second outlet valve are connected with a water outlet main pipe. The utility model adopts two sets of filters which are arranged in parallel, can switch and clean the filter screen through the control valve at any time, greatly saves the working time and the labor intensity, and ensures that the filter screen is cleaned more safely, simply and quickly.

Description

Cleaning device for circulating water filter

Technical Field

The utility model relates to the technical field of filtering equipment, in particular to a cleaning device for a circulating water filter.

Background

The used liquid such as circulating water in chemical industry is mostly used for doing the cooling effect for the machine, and liquid such as circulating water is in the motion state in the pipeline all the time, and the impurity in the pipeline can flow along with liquid together, constantly piles up, not only can influence the cooling effect of machine when impurity is more, arouses the condition of pipeline jam moreover easily, seriously influences the life of instrument, and this will bring very big unstability for the production operation.

The circulating water filter is a device which utilizes a filter screen to directly intercept impurities in water, remove suspended matters in water, particles, reduce turbidity, purify water quality, reduce system dirt, bacteria and algae, and the like, long-time operation leads to the increase of intercepted matters on the filter screen, so that the flow of the circulating water system is reduced to influence the production of chemical devices, so the filter screen needs to be cleaned regularly, but sometimes the bad environment around the circulating water field leads to the increase of the frequency of cleaning the filter screen in the filter, the filter screen is cleaned through the repeated disassembly and assembly of the flange cover, the working strength is high, the time is long, and certain danger exists in moving the flange cover, so the device which is simple, fast and safe in cleaning the filter screen needs to be researched.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects in the prior art, the utility model provides a cleaning device for a circulating water filter.

In order to achieve the purpose, the technical scheme of the utility model is as follows: a cleaning device for a circulating water filter comprises a first filter and a second filter which are symmetrically arranged; the front end of the filter I is respectively connected with a concentric backwashing blowdown valve I and an inlet valve I through a tee joint, and the rear end of the filter I is connected with an outlet valve I; the front end of the second filter is respectively connected with a second concentric backwashing blowdown valve and a second inlet valve through a tee joint, and the rear end of the second filter is connected with a second outlet valve; the other ends of the first inlet valve and the second inlet valve are connected with a water inlet main pipe, and the other ends of the first outlet valve and the second outlet valve are connected with a water outlet main pipe.

Furthermore, clamping grooves are formed in the first filter and the second filter, and detachable filter screens are arranged in the clamping grooves.

Furthermore, a first filter blow-down valve is arranged at the front end of the filter screen in the first filter, and a second filter blow-down valve is arranged at the front end of the filter screen in the second filter.

Further, the first filter blowdown valve is arranged below the first filter.

Further, the second filter blowdown valve is arranged below the second filter.

Further, flanges are arranged above the first filter and the second filter.

The utility model achieves the following beneficial effects:

1. the utility model provides a device for cleaning a circulating water filter, which adopts two sets of filters which are arranged in parallel, can switch and clean a filter screen through a control valve at any time, greatly saves the working time and the labor intensity, and ensures that the filter screen is cleaned more safely, simply and quickly.

2. The utility model utilizes the back washing technology to clean the filter, and the flange does not need to be opened repeatedly in the cleaning process, thereby prolonging the service life of the utility model, improving the working efficiency and reducing the production cost.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a top view of the internal filter screen of the present invention.

The notation in the figure is: 1. a water inlet main pipe; 2. a first inlet valve; 3. an inlet valve II; 4. a first filter; 5. a second filter; 6. a first outlet valve; 7. an outlet valve II; 8. a first filter blowdown valve; 9. a second filter blow-down valve; 10. a concentric backwashing blowdown valve I; 11. a concentric backwashing blowdown valve II; 12. a water outlet main pipe; 13. a filter screen; 14. a card slot; 15. and (4) a flange.

Detailed Description

In order to better understand the purpose, structure and function of the present invention, the following describes a cleaning device for a circulating water filter in further detail with reference to the attached drawings.

As shown in fig. 1 to 2, the utility model provides a cleaning device for a circulating water filter, which comprises a water inlet main pipe 1, wherein the water inlet main pipe 1 is respectively connected with an inlet valve I2 and an inlet valve II 3 through a three-way pipeline, the other end of the inlet valve I2 is respectively connected with a concentric backwashing sewage discharge valve I10 and a filter I4 through a three-way pipeline, and the rear end of the filter I4 is connected with an outlet valve I6; the other end of the inlet valve II 3 is respectively connected with a concentric backwashing blowdown valve II 11 and a filter II 5 through a three-way pipeline, the rear end of the filter II 5 is connected with an outlet valve II 7, and the outlet valve I6 and the outlet valve II 7 are connected with a water outlet main pipe 12 through three-way pipelines.

The lower part of the front end of the first filter 4 is provided with a first filter blowoff valve 8, the top of the first filter 4 is provided with a flange 15, the inner side of the first filter 4 is provided with a clamping groove 14, and a detachable stainless steel filter screen 13 is arranged in the clamping groove 14.

When the device is used, the first filter 4 is started, the first inlet valve 2 and the first outlet valve 6 are opened, the rest valves are closed, circulating water enters the first filter 4 through the first water inlet main pipe 1 and the first inlet valve 2 in sequence, solid impurities in the circulating water are intercepted after the circulating water is filtered by the filter screen 13 in the first filter 4, the filtered circulating water enters the circulating water outlet main pipe 12 through the first outlet valve 6, after the filter is used for a long time, a large amount of solids are intercepted on the filter screen, so that the pressure difference between the front and the back of the filter screen is increased, the flow rate of the circulating water is decreased, the production of a chemical device is influenced, the first filter 4 needs to be cleaned, the second filter 5 needs to be put into use before cleaning, the second outlet valve 7 of the second filter 5 is opened till the second filter is fully opened, meanwhile, the second inlet valve 3 of the second filter 5 is opened till the fully opened, then the first inlet valve 2 of the first filter 4 is closed, and the first filter 4 is stopped, filter two 5 is activated. When the first filter 4 is cleaned, the first concentric backwashing sewage valve 10 of the first filter 4 is slowly opened, a part of circulating water filtered by the second filter 5 reversely enters the first filter 4 through the first outlet valve 6, a high-pressure water flow reversely washes a filter screen 13 in the first filter 4, a large amount of residues such as rust, slime, plastic cloth, animal and plant residues and the like attached to the surface of the circulating water are discharged from the first concentric backwashing sewage valve 10, in order to ensure the circulating water flow and the pressure in the main pipe, the first concentric backwashing sewage valve 10 needs to be closed in time after short-time backwashing, backwashing is carried out again after the pressure and the flow are stable, when the residues do not flow out in the first concentric backwashing sewage valve 10, the first concentric backwashing sewage valve 10 is completely closed, then the first bottom filter sewage valve 8 is slowly opened, and solid impurities and sewage remained at the bottom of the first filter 4 are discharged from the first bottom filter sewage valve 8, after the first filter 4 is cleaned, the first outlet valve 6 is closed slowly, and the filtered circulating water flows out of the water outlet main pipe 12 completely.

After the filter 4 is used for a long time, the outlet valve 6 can be closed when the filter screen 13 in the filter 4 is seriously blocked, the drain valve 8 of the filter and the concentric backwashing drain valve 10 are opened to drain water in the filter 4, the cleaning tool is stretched into the concentric backwashing drain valve 10 to properly clean the filter screen 13 in the filter 4, and then the filter screen 13 in the filter 4 is subjected to backwashing cleaning according to the steps. The second filter 5 is cleaned the same as the first filter 4.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a cleaning device of circulating water filter which characterized in that: comprises a first filter (4) and a second filter (5) which are symmetrically arranged; the front end of the filter I (4) is respectively connected with a concentric backwashing blowdown valve I (10) and an inlet valve I (2) through a tee joint, and the rear end of the filter I is connected with an outlet valve I (6); the front end of the second filter (5) is respectively connected with a second concentric backwashing blowdown valve (11) and a second inlet valve (3) through a tee joint, and the rear end of the second filter is connected with a second outlet valve (7); the other ends of the inlet valve I (2) and the inlet valve II (3) are connected with the water inlet main pipe (1), and the other ends of the outlet valve I (6) and the outlet valve II (7) are connected with the water outlet main pipe (12).

2. A cleaning apparatus for a circulating water filter according to claim 1, wherein: the filter is characterized in that clamping grooves (14) are formed in the first filter (4) and the second filter (5), and detachable filter screens (13) are arranged in the clamping grooves (14).

3. A cleaning apparatus for a circulating water filter according to claim 2, wherein: the filter is characterized in that a first filter blow-down valve (8) is arranged at the front end of a filter screen (13) in the first filter (4), and a second filter blow-down valve (9) is arranged at the front end of the filter screen (13) in the second filter (5).

4. A cleaning apparatus for a circulating water filter according to claim 3, wherein: the first filter blowdown valve (8) is arranged below the first filter (4).

5. A cleaning apparatus for a circulating water filter according to claim 3, wherein: the second filter blow-down valve (9) is arranged below the second filter (5).

6. A cleaning apparatus for a circulating water filter according to claim 2, wherein: flanges (15) are arranged above the first filter (4) and the second filter (5).