CN211935726U

CN211935726U - Pipeline water filtering device

Info

Publication number: CN211935726U
Application number: CN201922321359.XU
Authority: CN
Inventors: 梁禹翔; 陶亚俊; 冯华军; 李广波; 费秀珍
Original assignee: Sichuan Huajiachi Environmental Protection Technology Engineering Co ltd
Current assignee: Sichuan Huajiachi Environmental Protection Technology Engineering Co ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-11-17
Anticipated expiration: 2029-12-20

Abstract

The application discloses pipeline water filter equipment includes: the water inlet pipe body, the water outlet pipe body and the two pipeline expanders which are connected in series, wherein one pipeline expander is connected with the water inlet pipe body, and the other pipeline expander is connected with the water outlet pipe body; the filter filler is arranged in one of the pipeline expanders, the pipeline expander provided with the filter filler is in a contraction state in a filtering state, and the contraction length is made up by the pipeline expander which is not provided with the filter filler. This application filter effect is good and convenient the washing to can adjust the compression degree of pipeline compressor to the difference of quality of water, realize the filterable effect of the same device of different qualities of water.

Description

Pipeline water filtering device

Technical Field

The application relates to the field of water treatment and filtration, in particular to a pipeline water filtering device.

Background

In order to reduce the turbidity of water and prevent impurities in water from affecting subsequent treatment facilities and treatment equipment, a pretreatment method of filtering sewage is widely used. Therefore, more and more filtering devices are invented and applied, but most filtering devices have the problems of easy blockage, poor filtering efficiency, short service life of the device and the like in the using process. As the core of the filtration device, the selection of the filtration unit and the design of the filtration device are the key to solving these problems. Therefore, the filtering equipment which has large treatment capacity, good filtering effect, easy cleaning and recovery and long service life has important significance for popularization and application.

The invention patent application publication No. CN105413469A discloses a filter comprising: the inner wall forms a cylindrical pipeline, and openings are formed in the inner wall and the outer shell; the shell and the inner wall are coaxially arranged and are arranged outside the inner wall at intervals; the filtering inner core is arranged between the shell and the inner wall of the shell. The filter solves the problem that the filter in the prior art can not filter the liquid to be filtered under the condition that the liquid to be filtered is arranged at the outer side, and better filtering is realized. However, the filter has the problem that the filtering inner core is easy to block, and the filter can only filter sewage with small flow, so the filter is not suitable for popularization.

The patent application publication No. CN102659233A discloses a pipeline filter, which comprises a water inlet, a filter outer shell, a filter inner shell and a water outlet, wherein the water inlet and the water outlet communicated with an external water pipe are respectively arranged at the corresponding positions of the two ends of the filter outer shell and the filter inner shell, a plurality of filter holes are arranged on the side wall of the filter inner shell close to the water outlet, a sewage discharge channel is arranged at the bottom of the filter inner shell and extends to the outside of the filter outer shell, and a sewage discharge gate valve is arranged on the sewage discharge channel outside the filter outer shell. However, the filter is difficult to filter contaminated water containing large impurities, and the filter is easily clogged and needs to be frequently cleaned.

The patent with publication number CN207356670U discloses a pipeline filter, which comprises a pipeline, a discharge port is arranged at one end of the pipeline, a cylindrical filter screen is further arranged in the pipeline, a baffle is integrally formed at the outer side end of the cylindrical filter screen, a pressing convex ring is fixed on the outer surface of the inner side end of the cylindrical filter screen, an annular pressing protrusion is arranged on the inner wall of the pipeline, a connecting protrusion is fixed on the surface of the end portion of the pipeline, a clamp blind plate is further arranged, a buckling groove is arranged on the inner side surface of the clamp blind plate, the cylindrical filter screen is inserted into the pipeline and presses the pressing convex ring on the annular pressing protrusion, the side surface of the baffle is pressed on the connecting protrusion and is buckled and fixed through the clamp blind plate, and the ring edge of the baffle and the connecting protrusion are buckled and pressed in the buckling groove. However, the filter is not suitable for filtering large-flow sewage, and the filtering effect may have a great problem.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pipeline water filter equipment, the filter effect is good and convenient the washing to can adjust the compression degree of pipeline compressor to the difference of quality of water, realize the same device filterable effect of different qualities of water.

A pipeline water filtration device comprising: the water inlet pipe body, the water outlet pipe body and the two pipeline expanders which are connected in series, wherein one pipeline expander is connected with the water inlet pipe body, and the other pipeline expander is connected with the water outlet pipe body; the filter filler is arranged in one of the pipeline expanders, the pipeline expander provided with the filter filler is in a contraction state in a filtering state, and the contraction length is made up by the pipeline expander which is not provided with the filter filler.

In this application, the length of contraction is made up by the pipeline expansion bend that does not establish the filtration filler and is meant: when the distance between the water inlet pipe body and the water outlet pipe body is fixed, when one of the pipeline retractors is compressed, the other pipeline retractor keeps the original length so as to adapt to the distance between the water inlet pipe body and the water outlet pipe body. And the states of the two pipeline expanders are exchanged and adjusted during backwashing.

In the filtering process, the pipeline compressor filled with the filtering filler is adjusted to be in a contraction state, the filtering filler in the pipeline compressor is extruded, the other pipeline expansion piece is in an original length state, the compression amount of the pipeline compressor filled with the filtering filler is made up, sewage enters through the water inlet pipe section, and filtering is formed through the pipeline expansion piece containing the filtering filler. When backwashing is needed, the states of the two pipeline retractors are exchanged, the filtering filler is in a loose state, and water flows into the water outlet pipeline from one end of the water outlet pipeline to backwash the filler.

Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.

Optionally, the filter filler is arranged in a pipeline expansion piece connected with the water inlet pipe body.

Optionally, hard filter screens are arranged at two ports of the pipeline expansion piece provided with the filtering filler; the filter filler is arranged between the two hard filter screens. The shape of the filter filler can be block, strip, granular and other possible shapes.

Optionally, the material of the filter filler is polyurethane or a derivative thereof.

The filtering efficiency is related to the PPI of the filtering filler, and if the density PPI of the filtering filler is too small, the filtering efficiency is not high after the pipeline expansion piece is compressed; if the density PPI of the filter packing is too high, the device is easily clogged after the pipe expander is compressed.

Optionally, the density PPI of the filter filler is 10-50.

The filtering efficiency is also related to the filling density of the filtering filler, and if the filling rate of the filtering filler is too low, the filtering effect is not high after the pipeline expansion and contraction device is compressed; if the filling rate of the filter packing is too high, the apparatus is likely to be clogged after the pipe expansion and contraction device is compressed.

Optionally, the filling density of the filter filler in the pipe expansion piece is 80% -100%.

The filtering efficiency is also related to the ratio of the original length L2 of the pipeline retractor to the length L1 of the contracted pipeline retractor, if the ratio is too small, the compression degree is not enough, and the filtering effect is not good; if the ratio is too large, the degree of compression is too great, resulting in poor filtration and possibly even clogging of the apparatus.

Optionally, the original length L2 of the pipe expansion and contraction device, the length L1 after contraction is (2-3): 1.

Optionally, a drain outlet is arranged at the bottom of the water inlet pipe body. A sewage discharge valve is arranged at the sewage discharge port.

Optionally, a pressure sensor is provided upstream of the filter packing.

Upstream of the filter insert means before the waste water to be treated enters the filter insert. Can be arranged on the water inlet pipe body and also can be arranged at the water inlet. The pressure sensor is arranged at the front end of the filter, and a backwashing program is started when the pressure is greater than 0.1 MPa.

Optionally, the water inlet pipe body and the pipeline expansion piece, the two pipeline expansion pieces and the pipeline expansion piece and the water outlet pipe body are connected through flanges. The hard filter screen is fixed in the middle of the flange.

Optionally, the water inlet pipe body is provided with a water inlet, and a water inlet valve is arranged at the water inlet; the water outlet pipe body is respectively provided with a water outlet and a back flushing water port, and the water outlet and the back flushing water port are respectively provided with a control valve.

During filtering, a pipeline expansion piece provided with the filler is compressed (the pipeline expansion piece without the filler is the original length), a water inlet is connected with a water inlet pump through a pipeline, and a filtered water body is discharged from a water outlet through the pipeline; during backwashing, the pipeline expansion piece provided with the filler is recovered to the original length, the pipeline expansion piece not provided with the filler is compressed, and backwashing water is pumped into the pipeline expansion piece from a backwashing port and flows out from a sewage discharge port.

And the PLC is further included, the pressure sensor is connected to the controller, and all valves (a water inlet valve, a water outlet valve, a back washing valve and a sewage discharge valve) are electrically operated valves and are connected to and controlled by the controller.

The pipeline compressor is a commercially available accessory, the compression and the original length recovery of the pipeline compressor are controlled by external force, manual adjustment can be achieved, the pipeline compressor can also be controlled by adding a driving mechanism, and the added driving mechanism can also be connected to a PLC.

Compared with the prior art, the utility model discloses following beneficial effect has at least:

1) the device has the advantages of simple structure, convenient assembly and low cost;

2) the filtering efficiency is high, the backwashing per se can be realized, and the easy cleaning and recovery performance are greatly improved;

3) the device can adjust the compression degree of the pipeline compressor according to different water qualities, and the filtering effect of the same device with different water qualities is realized;

4) the device has strong variability of water treatment amount, can treat large water amount and small water amount, and has long service life.

Drawings

FIG. 1 is a schematic diagram of the present application in a filtered state.

FIG. 2 is a schematic diagram of the backwash state of the present application.

The reference numerals shown in the figures are as follows:

1-water inlet 2-water inlet valve 3-water inlet pipe body

4-flange 5-sewage draining outlet 6-sewage draining valve

7-first pipeline compressor 8-second pipeline compressor 9-water outlet pipe body

10-water outlet 11-water outlet valve 12-backwashing water inlet

13-backwash valve 14-filter packing

L1-compressed state tube retractor length, i.e. length after contraction of the tube retractor.

L2-normal state tube extension compressor length, i.e. the original length of the tube retractor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Fig. 1 is a schematic structural diagram of a pipeline water filtering device in a filtering state, and fig. 2 is a schematic structural diagram of the pipeline water filtering device in a backwashing state, wherein the pipeline water filtering device comprises: the water inlet pipe body 2, the water outlet pipe body 9 and two serially connected pipeline expanders (a first pipeline expander 7 and a second pipeline expander 8), the water inlet pipe body 3 is connected to the first pipeline expander 7, the water outlet pipe body 9 is connected to the second pipeline expander 8, namely the water inlet pipe body 3, the first pipeline expander 7, the second pipeline expander 8 and the water outlet pipe body 9 are connected in sequence, and the connection mode can adopt conventional flanges 4 and bolt connection.

The filter filler 14 is arranged in one of the pipeline expanders, the pipeline expander provided with the filter filler is in a contraction state in a filtering state, the pipeline expander not provided with the filler is in an original length state in the filtering state, and the contraction length of the pipeline expander provided with the filler is made up by the pipeline expander not provided with the filter filler. In one embodiment, a filter packing 14 is disposed in the first pipe expansion device 7 connected to the water inlet pipe body 3. In other embodiments, a filter packing may also be disposed within the second tube expander.

In the filtering process, the pipeline compressor filled with the filtering filler is adjusted to be in a contraction state, the filtering filler is extruded inside the pipeline compressor, the other pipeline expansion piece is in an original length state, the compression amount of the pipeline compressor filled with the filtering filler is made up, sewage enters through the water inlet pipe body, and filtering is formed through the pipeline compressor containing the filtering filler. When backwashing is needed, the states of the two pipeline retractors are changed and adjusted, the filtering filler is in a loose state, and water flows into the water outlet pipeline from one end of the water outlet pipeline to backwash the filler.

The filtering filler 14 is installed in the first pipeline expansion piece 7, in one embodiment, hard filter screens are arranged at two ports of the first pipeline expansion piece 7, and the hard filter screens can be made of steel wire meshes and the like and are fixed in the middle of the connecting flange; the filter filler is filled between the two hard filter screens.

The shape of the filter filler can be block, strip, granular and other possible shapes. The material of the filter filler can be polyurethane or derivative materials thereof.

On one hand, the filtration efficiency is related to the PPI of the filtration filler, and if the density PPI of the filtration filler is too small, the filtration efficiency is not high after the pipeline expansion and contraction device is compressed; if the density PPI of the filter packing is too high, the device is easily clogged after the pipe expander is compressed. In one embodiment, the density of the filter filler is PPI of 10-50.

On the other hand, the filtering efficiency is also related to the filling density of the filtering filler, and if the filling rate of the filtering filler is too low, the filtering effect is not high after the pipeline expansion and contraction device is compressed; if the filling rate of the filter packing is too high, the apparatus is likely to be clogged after the pipe expansion and contraction device is compressed. In one embodiment, the packing density of the filter packing within the tube expander is between 80% and 100%.

On the other hand, the filtering efficiency is also related to the ratio of the original length L2 of the pipeline retractor to the length L1 of the pipeline retractor after the pipeline retractor is retracted, and if the ratio is too small, the compression degree is insufficient, so that the filtering effect is poor; if the ratio is too large, the degree of compression is too great, resulting in poor filtration and possibly even clogging of the apparatus. In one embodiment, the original length L2 of the two pipeline retractors is the length L after the pipeline retractors are retracted₁1 is defined as (2-3). The pipe expansion joint is a commercially available fitting.

After filtering for a period of time, the filter filler needs to be backwashed, and in order to enable the backwashed mud to be smoothly discharged, in one embodiment, the bottom of the water inlet pipe body 3 is provided with a sewage outlet 5.

The backwashing program can be manually judged according to experience or started by other monitoring fingers, in one judgment mode, a pressure sensor is arranged at the front end of the filter filler, can be arranged at the water inlet pipe body and can also be arranged at the water inlet, the backwashing program is started according to the pressure, and the backwashing program is started when the pressure is more than 0.1 MPa.

In one embodiment, the water inlet pipe body 3, the two pipeline retractors and the water outlet pipe body 9 are all horizontally placed, the water inlet pipe body 3 is provided with a water inlet 1, the water inlet 1 is provided with a water inlet valve 2, the sewage discharge port 5 is positioned on the bottom pipe wall of the water inlet pipe body, and the sewage discharge port is provided with a sewage discharge valve 6. The water outlet pipe body 9 is provided with a water outlet 10, a water outlet valve 11 is arranged at the water outlet 10, and the pressure sensor is arranged at the water inlet pipe body or the water inlet. A back washing water port 12 is arranged on the side wall of the bottom of the water outlet pipe body, and a back washing valve 13 is arranged at the back washing water port 12. In one embodiment, the water inlet and the water outlet are located on the same horizontal plane.

The control of the water inlet and outlet and the backwashing water can be manually controlled and also can be automatically controlled, in an automatic control mode, the water inlet, the water outlet, the sewage draining port and the backwashing water inlet can be controlled through valves, the water inlet is connected with a feed pump, the backwashing water inlet is connected with a backwashing pump, the water outlet is connected with a clean water tank, the sewage draining port is connected with a waste water tank, and the water inlet and the water outlet are switched through valve linkage. In order to facilitate the linkage switching, in one embodiment, a controller such as a PLC may be further provided, and all valves are electrically operated valves and are connected to and controlled by the controller. The pressure sensor is also connected with the controller, and the back washing program can be automatically started according to the pressure information.

The installation and filtration step of this application includes:

1) the filler is arranged in a pipeline expansion piece for installation, a water inlet is connected with water inlet through a water pump, a water outlet is connected to the other side, and sewage is discharged and connected to a sewage pool body;

2) compressing the pipeline expansion piece, and pumping inlet water into a filtering device through a water pump;

3) after the operation is carried out for a certain time, when the pressure at the front end of the filter filler is greater than a set value, closing the water inlet and the water outlet, opening the backwashing port and the sewage outlet, restoring the pipeline expansion piece to the original length, starting a backwashing program, and discharging residues;

4) and (4) closing the sewage draining outlet and the backwashing outlet, opening the water inlet and the water outlet, and repeating the steps 2) to 3).

The process principle of the application is as follows: adding a polyurethane filler into the pipeline retractor, wherein in the filtering process, the pipeline retractor contracts to extrude the polyurethane filler in the pipeline retractor, and filtering is formed by pumping sewage into the device through the pipeline retractor containing the polyurethane filler; set up pressure sensor at filtering the front end, when pressure was greater than the setting value, the backwash process began, and the pipeline shrinker resumes to original length, and rivers get into the filter from the backwash mouth, are discharging from the drain, accomplish the backwash process, later the repeated filtration and the backwash process of going on.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. When technical features in different embodiments are represented in the same drawing, it can be seen that the drawing also discloses a combination of the embodiments concerned.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. Pipeline water filter equipment, its characterized in that includes: the water inlet pipe body, the water outlet pipe body and the two pipeline expanders which are connected in series, wherein one pipeline expander is connected with the water inlet pipe body, and the other pipeline expander is connected with the water outlet pipe body; the filter filler is arranged in one of the pipeline expanders, the pipeline expander provided with the filter filler is in a contraction state in a filtering state, and the contraction length is made up by the pipeline expander which is not provided with the filter filler.

2. The plumbing water filtration device of claim 1, wherein the filter packing is disposed within a plumbing expansion joint connected to the water intake pipe.

3. The pipeline water filtering device according to claim 1, wherein hard filter screens are arranged at two ports of the pipeline expansion device provided with the filter filler; the filter filler is arranged between the two hard filter screens.

4. The pipeline water filtering device according to claim 1, wherein the filtering filler is made of polyurethane or a derivative thereof.

5. The pipeline water filtration device of claim 1, wherein the filter packing has a density PPI of 10 to 50.

6. The pipeline water filtration device of claim 1 wherein the packing density of the filter packing within the pipeline expansion and contraction device is between 80% and 100%.

7. The pipeline water filtering device as claimed in claim 1, wherein the original length L2 of the pipeline expansion and contraction device, the length L1 after contraction, is (2-3): 1.

8. The pipeline water filtering device as claimed in claim 1, wherein a drain outlet is provided at the bottom of the water inlet pipe body.

9. The plumbing water filtration device of claim 1, further comprising a pressure sensor disposed upstream of the filter pack.

10. The pipeline water filter device of claim 1 wherein the water inlet pipe body is provided with a water inlet, and a water inlet valve is arranged at the water inlet; the water outlet pipe body is respectively provided with a water outlet and a back flushing water port, and the water outlet and the back flushing water port are respectively provided with a control valve.