CN224172622U

CN224172622U - Integrated self-cleaning water treatment system

Info

Publication number: CN224172622U
Application number: CN202520844738.XU
Authority: CN
Inventors: 陈吉明; 徐道聪; 梁小吉
Original assignee: ZHEJIANG ANLU CLEANING MACHINERY CO Ltd
Current assignee: ZHEJIANG ANLU CLEANING MACHINERY CO Ltd
Priority date: 2025-04-29
Filing date: 2025-04-29
Publication date: 2026-04-28
Anticipated expiration: 2035-04-29

Abstract

The utility model belongs to the technical field of water treatment, and particularly relates to an integrated self-cleaning water treatment system which comprises a three-stage sedimentation tank, a sewage precise filter, a PVDF membrane filter element and a medium water tank, wherein the three-stage sedimentation tank comprises a first-stage sand setting tank, a second-stage oil removal tank and a third-stage sewage tank, a sewage pump is arranged in the third-stage sewage tank, the sewage pump is connected with the sewage precise filter through a pipe, the sewage precise filter is connected with a steering valve through a pipe, the steering valve is connected with the PVDF membrane filter element, the PVDF membrane filter element is connected with the medium water tank through a pipe, an ozone generator is arranged in the medium water tank, the integrated self-cleaning water treatment system further comprises a back flushing pump, one end of the back flushing pump is connected with the medium water tank through a pipe, and the other end of the back flushing pump is connected with the PVDF membrane filter element through a pipe and the steering valve.

Description

Integrated self-cleaning water treatment system

Technical Field

The utility model belongs to the technical field of water treatment, and particularly relates to an integrated self-cleaning water treatment system which is suitable for the situations of vehicle washing wastewater circulation, industrial reuse water treatment and the like.

Background

At present, in the scenes of car washing wastewater circulation, industrial reuse water treatment and the like, a water treatment system has the following problems that firstly, the filtering efficiency is low, micro suspended matters and colloid pollutants are difficult to remove by adopting a single precipitation or filtering process, the turbidity of effluent is unstable, secondly, the maintenance cost is high, the traditional back flushing depends on an external water source, the water consumption is large, the filter core is blocked and needs to be manually cleaned or replaced, thirdly, the sterilization is incomplete, byproducts are easy to generate in chemical sterilization, and the ultraviolet sterilization has high requirements on the transparency of water quality.

Disclosure of Invention

The utility model aims to overcome the problems in the background technology and provides an integrated self-cleaning water treatment system which improves water quality through multistage filtration and ozone collaborative sterilization, realizes self-cleaning back flushing by utilizing filtered clean water and reduces operation and maintenance cost.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides an integrated self-cleaning water treatment system, includes tertiary sedimentation tank, sewage precision filter, PVDF membrane filter core and well water tank, tertiary sedimentation tank includes one-level grit chamber, second grade deoiling pond and tertiary effluent water sump, sets up the sewage pump in the tertiary effluent water sump, and the sewage pump passes through pipe connection sewage precision filter, and sewage precision filter passes through the pipe connection steering valve, and the PVDF membrane filter core is connected to the steering valve, and the PVDF membrane filter core passes through pipe connection well water tank, sets up ozone generator in the well water tank, still includes the backwash pump, and the water tank is in the pipe connection is passed through to one end of backwash pump, and the PVDF membrane filter core is passed through to another end of backwash pump through the pipe and pass through the steering valve.

Furthermore, the bottom of the PVDF membrane filter element is provided with a sewage connection pipe, the sewage connection pipe is provided with a sewage valve, and the sewage valve is externally discharged or connected with the primary grit chamber through a pipe.

Furthermore, the bottom of the sewage precise filter is connected with a sewage discharging connecting pipe through a pipe.

Further, set up the one-level filtration pore between one-level grit chamber and the second grade oil removal pond, set up the second grade filtration pore between second grade oil removal pond and the tertiary effluent water sump, all be equipped with the filter screen in one-level filtration pore and the second grade filtration pore.

Further, a flocculating agent is added into the secondary oil removal tank.

Compared with the prior art, the integrated self-cleaning water treatment system has the advantages that:

1. And (3) water quality improvement: three-stage precipitation, two-stage filtration and ozone sterilization, wherein the turbidity of the effluent is less than or equal to 1NTU, and the total number of bacteria is less than or equal to 100CFU/mL;

water saving and consumption reduction: the water saving rate is more than or equal to 40% by utilizing the back flushing of the filtered water, and an external water source is not needed;

2. The long life design is that PVDF film is resistant to chemical corrosion, back flushing logic delays blocking, and filter core life is prolonged by 50%.

Drawings

FIG. 1 is a schematic diagram of an integrated self-cleaning water treatment system according to the present utility model.

Detailed Description

The utility model will now be described in detail with reference to specific examples which will assist those skilled in the art in further understanding the utility model, but which are not intended to be limiting in any way.

As shown in fig. 1, the utility model relates to an integrated self-cleaning water treatment system, which comprises a three-stage sedimentation tank 1, a sewage precise filter 2, a PVDF membrane filter element 3 and a reclaimed water tank 4, wherein the three-stage sedimentation tank 1 comprises a first-stage sand basin 11, a second-stage oil removal tank 12 and a third-stage sewage basin 13, a sewage pump 5 is arranged in the third-stage sewage basin 13, the sewage pump 5 is connected with the sewage precise filter 2 through a pipe, the sewage precise filter 2 is connected with a steering valve 6 through a pipe, the steering valve 6 is connected with the PVDF membrane filter element 3, the PVDF membrane filter element 3 is connected with the reclaimed water tank 4 through a pipe, an ozone generator 7 is arranged in the reclaimed water tank 4, a backwash pump 8 is further arranged, one end of the backwash pump 8 is connected with the reclaimed water tank 4 through a pipe, and the other end of the backwash pump 8 is connected with the PVDF membrane filter element 3 through the pipe and the steering valve 6.

The primary grit chamber 11 adopts an inclined plate sedimentation structure, the retention time of wastewater is more than or equal to 30 minutes, the large-particle suspended matters (the grain diameter is more than or equal to 100 mu m) are removed, the retention time is more than or equal to 20 minutes in the secondary oil removal chamber 12, substances such as colloid and the like are removed, the wastewater is slowly sedimentated in the tertiary wastewater tank 13, the turbidity of the discharged water is less than or equal to 20NTU, then the wastewater in the tertiary wastewater tank is directly pumped into the wastewater precise filter 2 by the wastewater pump 5 for filtration, the filtration precision of the wastewater precise filter 2 is more than or equal to 0.6MPa, the residual suspended matters are intercepted, the filtered wastewater is sent into the PVDF membrane filter element 3 through the steering valve 6 for filtration, the PVDF membrane filter element 3 is made of a hollow fiber ultrafiltration membrane (the pore diameter is 0.01 mu m) material, ozone oxidation resistance is realized, the filtered wastewater is sent into the reclaimed water tank 4 for storage, ozone generator 7 is arranged in the reclaimed water tank 4, the ozone generator (the output is more than or equal to 5 g/h) is mixed into water through the jet flow device, the contact time is more than or equal to 5 minutes, the residual ozone concentration is more than or equal to 0.1mg/L, and the large-molecular bacteria and the odor can be removed. After a period of use, the PVDF membrane filter element 3 is blocked, the backwash pump 8 is started, the backwash pump 8 can be placed beside the reclaimed water tank 4, water in the reclaimed water tank 4 is pumped, the PVDF membrane filter element 3 is flushed by backflow of the diverter valve 6, and the blockage is flushed out of the PVDF membrane filter element 3, so that self-cleaning is realized.

Furthermore, a blowdown connecting pipe 9 is arranged at the bottom of the PVDF membrane filter element 3, a blowdown valve 10 is arranged on the blowdown connecting pipe 9, the blowdown valve is externally arranged or connected with a primary grit chamber 11 through a pipe, certain pollutants are always accumulated in the PVDF membrane filter element 3 after the water treatment system is used for a period of time, and the blowdown connecting pipe is available, and can be directly externally arranged through the blowdown valve or discharged into the primary grit chamber 11 for circular treatment.

Furthermore, the bottom of the sewage precise filter 2 is connected with a sewage connecting pipe 9 through a pipe, and certain pollutant can be accumulated after the sewage precise filter 2 is used for a period of time, so that the pollutant can be discharged through the sewage connecting pipe.

Further, a first-stage filtering hole 15 is arranged between the first-stage sand setting tank 11 and the second-stage oil removal tank 12, a second-stage filtering hole 16 is arranged between the second-stage oil removal tank 12 and the third-stage sewage tank 13, and filtering screens 17 are arranged in the first-stage filtering hole 15 and the second-stage filtering hole 16, so that flocculent objects can be filtered by the filtering screens.

Furthermore, flocculant (such as PAC) is added into the secondary oil removal tank 12, the residence time is more than or equal to 20 minutes, and the colloid material removal efficiency is better.

The foregoing detailed description is provided to illustrate the present utility model and not to limit the utility model, and any modifications and changes made to the present utility model within the spirit of the present utility model and the scope of the appended claims fall within the scope of the present utility model.

Claims

1. The utility model provides an integrated self-cleaning water treatment system, its characterized in that includes tertiary sedimentation tank (1), sewage precision filter (2), PVDF membrane filter core (3) and well water tank (4), tertiary sedimentation tank (1) include one-level grit chamber (11), second grade oil removal pond (12) and tertiary effluent water sump (13), set up sewage pump (5) in tertiary effluent water sump (13), sewage pump (5) pass through pipe connection sewage precision filter (2), sewage precision filter (2) pass through pipe connection steering valve (6), PVDF membrane filter core (3) are connected in steering valve (6), PVDF membrane filter core (3) pass through pipe connection well water tank (4), set up ozone generator (7) in well water tank (4), still include backwash pump (8), one end of backwash pump (8) passes through pipe connection well water tank (4), the other end of backwash pump (8) passes through the pipe and passes through steering valve (6) and connects PVDF membrane filter core (3).

2. An integrated self-cleaning water treatment system as claimed in claim 1, characterized in that the bottom of the PVDF membrane cartridge (3) is provided with a blowdown nipple (9), the blowdown nipple (9) is provided with a blowdown valve (10), and the blowdown valve is externally discharged or connected with a primary grit chamber (11) through a pipe.

3. An integrated self-cleaning water treatment system according to claim 1, characterized in that the bottom of the sewage precision filter (2) is connected to a sewage connection pipe (9) by means of a pipe.

4. An integrated self-cleaning water treatment system as claimed in claim 1, characterized in that a primary filter hole (15) is arranged between the primary sand basin (11) and the secondary oil removal basin (12), a secondary filter hole (16) is arranged between the secondary oil removal basin (12) and the tertiary sewage basin (13), and filter screens (17) are arranged in the primary filter hole (15) and the secondary filter hole (16).

5. An integrated self-cleaning water treatment system according to claim 1, characterized in that a flocculant is added to the secondary oil removal tank (12).