Backflushing self-cleaning filter
Technical Field
The utility model relates to an industry filtration equipment technical field, in particular to recoil self-cleaning filter.
Background
Along with the water quality pretreatment of industrial water and the treatment process of circulating cooling water, the automatic mutual selection backwashing filter can be avoided, the industrial water quality can be effectively treated, the backwashing filter is used for filtering, so that a system and other precision equipment which normally work can be protected, the requirements of people can be met, and each dripping resource can fully exert the due effect. Generally adopt the method of spraying to carry out the recoil self-cleaning in the traditional structure, this method is not good to the filtration pipeline of the cylindricality of vertical setting, and the filtrating that just needs a large amount of filtration to accomplish flows back to jar internal and washs, and equipment power consumption is serious, consequently the utility model develops a recoil self-cleaning filter to solve the problem that exists among the prior art, through the retrieval, not discover with the utility model discloses the same or similar technical scheme.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose is: provides a backflushing self-cleaning filter, which solves the problems of poor self-cleaning effect and relatively serious energy consumption of equipment in the prior art.
The technical scheme of the utility model is that: a backflushing self-cleaning filter comprises a tank body, a filter assembly and a backflushing assembly, wherein the filter assembly and the backflushing assembly are arranged in the tank body; the interior of the tank body is divided into an upper chamber and a lower chamber by a partition plate; the filtering component comprises a liquid inlet pipe and a circulation pipeline which are arranged in the lower chamber, and a filtering pipeline, an overflow pipeline and a liquid outlet pipe which are arranged in the upper chamber; the back washing assembly comprises a sealing air blowing assembly arranged corresponding to the overflow pipeline and a return pipeline communicated with the circulation pipeline; and valves are arranged on the liquid inlet pipe and the return pipeline.
Preferably, the inner diameter of the overflow pipeline is larger than the outer diameter of the filtering pipeline, the overflow pipeline and the filtering pipeline are sleeved outside the filtering pipeline, and a plurality of overflow pipelines and filtering pipelines are uniformly distributed in the tank body in an annular manner and are fixed on the upper end face of the partition plate; the filtering pipeline is of a permeable structure with an opening at the lower end, and the overflow pipeline is of a cylindrical structure with openings at two ends and is higher than the filtering pipeline; the circulation pipeline comprises a middle tank and a plurality of guide pipes communicated with the middle tank, and the guide pipes are respectively communicated with the lower end of the filtering pipeline; the liquid inlet pipe is communicated with the intermediate tank, and the liquid outlet pipe is arranged on the side wall of the tank body and communicated with the upper chamber.
Preferably, the sealed subassembly of blowing is used for going up and down and sealed in overflow pipeline upper end, return line includes transition pipe, concentrated jar and the liquid return pipe that communicates in proper order with the pans, the valve is installed on the liquid return pipe.
Preferably, a slag discharge port communicated with the centralized tank is arranged below the tank body.
Preferably, the sealed air blowing assembly comprises an execution guide plate arranged in the upper chamber, a plurality of air leakage blocks arranged at the lower end of the execution guide plate, an air cylinder for driving the execution guide plate to move up and down, and an air source interface for external connection; the upper end of the tank body is recessed inwards to form a cavity for mounting an air cylinder; the plurality of air release blocks are sequentially arranged corresponding to the overflow pipeline and can be descended and blocked at the upper end of the overflow pipeline; and vent pipelines communicated with the air source interface are arranged in the air release blocks and the execution guide plate, and the vent pipelines pass through the execution guide plate and uniformly penetrate through each air release block.
Preferably, the tank body comprises an upper shell, a middle shell and a lower shell which are fixedly connected in sequence through a flange plate in a sealing manner; the upper shell is of a cylinder structure with an opening at the lower end and an arc-shaped upper end, and the sealing air blowing assembly is arranged on the upper shell; the middle shell is of a cylindrical structure with openings at the upper end and the lower end, and the partition plate is fixed at the lower end in the middle shell; the lower shell is of a cylinder structure with an upper end opening and a lower end arc-shaped, an access hole is formed in the side wall, and the circulation pipeline and the return pipeline are both installed in the lower shell.
Compared with the prior art, the utility model has the advantages that:
the overflow pipeline is additionally arranged outside the filtering pipeline, so that the filtering pipeline can be backflushed by liquid fully stored in the overflow pipeline during self-cleaning, filtrate backflow flushing is not needed, and energy consumption is reduced; meanwhile, the sealing air blowing assembly is used for increasing the pressure inside the overflow pipeline, so that the flow rate of liquid in the backflushing process is increased, and the self-cleaning efficiency is further improved.
Drawings
The invention will be further described with reference to the following drawings and examples:
FIG. 1 is a front view of a backflushing self-cleaning filter according to the present invention;
FIG. 2 is a front exploded view of a backflushing self-cleaning filter according to the present invention;
FIG. 3 is a front view of the upper housing and the sealing and blowing assembly of the present invention;
fig. 4 is a front view of the middle housing, the filtering pipeline and the overflow pipeline of the present invention;
fig. 5 is a front view of the lower housing, the flow line and the return line of the present invention;
FIG. 6 is a diagram illustrating the internal fluid flow path of a backflushing self-cleaning filter according to the present invention during filtration;
fig. 7 is a diagram illustrating the flow path of the internal liquid of the backflushing self-cleaning filter during backflushing self-cleaning according to the present invention.
Wherein: 1. the device comprises a tank body, 11, an upper shell, 12, a middle shell, 13, a lower shell, 14, an upper cavity, 15, a lower cavity, 16, an access hole, 17 and a partition plate;
21. a liquid inlet pipe 22, a circulation pipeline 23, a filtering pipeline 24, an overflow pipeline 25 and a liquid outlet pipe;
221. a tundish 222 and a guide pipe;
31. the device comprises a sealed blowing assembly 311, an execution guide plate 312, a gas release block 313, a cylinder 314, a gas source interface 315 and a ventilation pipeline;
32. a return pipeline 321, transition pipes 322, a concentration tank 323, a liquid return pipe 324 and a slag discharge port; 4. and (4) a valve.
Detailed Description
The following detailed description is made in conjunction with specific embodiments of the present invention:
as shown in fig. 1 and 2, the backflushing self-cleaning filter comprises a tank body 1, a filter assembly and a backflushing assembly, wherein the filter assembly and the backflushing assembly are arranged in the tank body 1; simply, the interior of the tank body 1 is divided into an upper chamber 14 and a lower chamber 15 by a partition plate 17; the filtering component comprises a liquid inlet pipe 21 and a circulation pipeline 22 which are arranged in the lower cavity 15, and a filtering pipeline 23, an overflow pipeline 24 and a liquid outlet pipe 25 which are arranged in the upper cavity 14; the back flushing component comprises a sealing air blowing component 31 arranged corresponding to the overflow pipeline 24 and a return pipeline 32 communicated with the circulation pipeline 22; the liquid inlet pipe 21 and the return pipeline 32 are both provided with valves 4.
Specifically, as shown in fig. 2-5, the tank body 1 comprises an upper shell 11, a middle shell 12 and a lower shell 13, which are fixedly connected in sequence through a flange plate in a sealing manner; the upper shell 11 is of a cylindrical structure with an opening at the lower end and an arc-shaped upper end, and the sealing and blowing assembly 31 is installed on the upper shell 11; the middle shell 12 is a cylinder structure with openings at the upper and lower ends, and the clapboard 17 is fixed at the lower end in the middle shell 12; the lower casing 13 is a cylindrical structure with an opening at the upper end and an arc-shaped lower end, the sidewall is provided with an access opening 16, and the circulation pipeline 22 and the return pipeline 32 are both installed in the lower casing 13.
As shown in fig. 1 and 4, the inner diameter of the overflow pipeline 24 is larger than the outer diameter of the filtering pipeline 23, and the overflow pipeline 24 and the filtering pipeline 23 are sleeved outside the filtering pipeline 23, and a plurality of overflow pipelines 24 and filtering pipelines 23 are uniformly distributed in the tank body 1 in an annular manner and are fixed on the upper end surface of the partition plate 17; the filtering pipeline 23 is of a permeable structure with an opening at the lower end, and the overflow pipeline 24 is of a cylindrical structure with openings at two ends and is higher than the filtering pipeline 23; as shown in fig. 1 and 5, the circulation line 22 includes an intermediate tank 221 and a plurality of flow conduits 222 communicated with the intermediate tank 221, and the plurality of flow conduits 222 are respectively communicated with the lower end of the filtering line 23; the liquid inlet pipe 21 is communicated with the intermediate tank 221, and the liquid outlet pipe 25 is arranged on the side wall of the tank body 1 and communicated with the upper cavity 14.
As shown in fig. 1 and 3, the sealing and blowing assembly 31 is used for lifting and sealing the upper end of the overflow pipeline 24, and includes an execution guide plate 311 arranged in the upper chamber 14, a plurality of air leakage blocks 312 installed at the lower end of the execution guide plate 311, an air cylinder 313 for driving the execution guide plate 311 to move up and down, and an air source interface 314 for external connection; the upper end of the tank body 1 is recessed inwards to form a cavity for mounting the air cylinder 313; the plurality of air release blocks 312 are sequentially arranged corresponding to the overflow pipeline 24 and can be descended and blocked at the upper end of the overflow pipeline 24; vent pipes 315 communicated with the air source interface 314 are arranged in the air release blocks 312 and the execution guide plate 311, and the vent pipes 315 pass through the execution guide plate 311 and uniformly penetrate through each air release block 312; as shown in fig. 1 and 5, the return line 32 includes a transition pipe 321, a concentration tank 322 and a liquid return pipe 323 sequentially connected to the intermediate tank 221, and the valve 4 is installed on the liquid return pipe 323; a slag discharge port 324 communicated with the centralized tank 322 is also arranged below the tank body 1.
The working principle of the utility model is as follows:
first, as shown in fig. 6, regarding the filtration, the flow path of the liquid is shown by the arrows in the figure;
(1) the valve 4 on the liquid inlet pipe 21 is opened, and the valve 4 on the liquid return pipe 323 is closed; wastewater to be treated (hereinafter referred to as "liquid to be treated") enters the intermediate tank 221 from the liquid inlet pipe 21 and enters the filtering pipeline 23 along with the flow guide pipe 222;
(2) the filtering pipeline 23 is used for filtering the liquid to be treated, impurities are trapped inside the filtering pipeline 23, and the filtrate enters the overflow pipeline 24 (meaning the space between the inner wall of the overflow pipeline 24 and the outer wall of the filtering pipeline 23);
(3) as the filtrate level rises in overflow line 24 and eventually overflows into upper chamber 14, it is eventually drained through drain 25.
Secondly, as shown in fig. 7, regarding the back flushing self-cleaning, the flow path of the liquid is shown by the arrows in the figure;
(1) the valve 4 on the liquid inlet pipe 21 is closed, the valve 4 on the liquid return pipe 323 is opened, at this time, the liquid in the overflow pipeline 24, the flow guide pipe 222 and the intermediate tank 221 can flow downstream into the concentration tank 322, the cylinder 313 drives the air release block 312 to move downward in the process, and the air release block 312 is convenient to block the upper end of the overflow pipeline 24 because the liquid level can gradually drop;
(2) the air source interface 314 is used for connecting an air charging device externally, at the moment, air is charged into the overflow pipeline 24 through the air source interface 314, the pressure in the overflow pipeline 24 is increased, the water flow speed is further improved, the filtrate in the overflow pipeline 24 can reversely impact impurities on the inner wall of the filtering pipeline 23 multiplied by the product, and the impurities continuously flow into the concentration tank 322 along the overflow pipeline 24, the flow guide pipe 222 and the intermediate tank 221;
(3) along with the continuous decline of the liquid level in the overflow pipeline 24, the impurities still attached to the inner wall of the filtering pipeline 23 higher than the liquid level are blown off under the action of the internal air flow and are continuously discharged along with the liquid; as the liquid level continues to drop, the liquid in the intermediate tank 221 is discharged into the centralized tank 322;
(4) the wastewater in the concentration tank 322 can flow into the wastewater tank through the liquid return pipe 323 to be treated, and the impurities deposited inside can be discharged from the slag discharge port 324.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. It is obvious to a person skilled in the art that the invention is not limited to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention, and that the embodiments are therefore to be considered in all respects as exemplary and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.