CN211035344U

CN211035344U - Membrane filtering device for water treatment

Info

Publication number: CN211035344U
Application number: CN201922025098.7U
Authority: CN
Inventors: 耿华
Original assignee: Qingdao Ward Water Service Co ltd
Current assignee: Qingdao Ward Water Service Co ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-07-17
Anticipated expiration: 2029-11-21

Abstract

The utility model relates to the technical field of water treatment, and discloses a membrane filtering device for water treatment, which solves the problems that the common membrane filtering device has blockage phenomenon due to accumulation of foreign matters in the long-time use process, the filtering performance of the common membrane filtering device can be reduced, the primary filtering effect of the common membrane filtering device is poor, and adverse effects can be generated; the utility model can regularly back flush the membrane filter by matching the high-pressure water pipe, the flushing pipe, the sewage discharge pipe and the like, thereby avoiding the blocking phenomenon and ensuring the filtering performance of the membrane filter; the primary filtration treatment to raw water can be realized through the cooperation of the first filter, the second filter, the third filter and the like, and the effect is good.

Description

Membrane filtering device for water treatment

Technical Field

The utility model belongs to the technical field of water treatment, specifically be a membrane filtration device of water treatment.

Background

The water treatment aims at improving the water quality to reach a certain water quality standard; according to different treatment methods, there are various methods such as physical water treatment, chemical water treatment, biological water treatment and the like; there are two main types of water treatment and wastewater treatment depending on the object or purpose of treatment. The feed water treatment comprises two types of domestic drinking water treatment and industrial water treatment; the wastewater treatment is divided into domestic sewage treatment and industrial wastewater treatment; among them, boiler feed water treatment, makeup feed water treatment, turbine main condensation water treatment, and circulating water treatment, which belong to the industrial water treatment category, are particularly closely related to the thermal technology, and a membrane filtration device is required in the water treatment process.

However, in the process of using the general membrane filtration device for a long time, the foreign matter accumulation can cause the blocking phenomenon, the filtration performance of the general membrane filtration device can be reduced, and the primary filtration effect of the general membrane filtration device is poor, and adverse effects can be generated.

Disclosure of Invention

To the above situation, for overcoming prior art's defect, the utility model provides a membrane filtration device of water treatment, the effectual in-process of having solved general membrane filtration device and using for a long time, the foreign matter accumulation can make it take place blocking phenomenon, can reduce its filtering quality, and general membrane filtration device prefiltration's effect is relatively poor, can produce the problem of harmful effects.

In order to achieve the above object, the utility model provides a following technical scheme: a membrane filtering device for water treatment comprises a base, wherein a first mounting frame and a second mounting frame are respectively arranged on two sides of the top end of the base, three membrane filters are arranged in the middle of the second mounting frame at equal intervals, the structures of the inner parts of the three membrane filters are the same, two spring type telescopic rods are arranged on the inner wall of one side of each membrane filter, one ends of the two spring type telescopic rods are fixedly connected with the outer wall of one side of a pressing plate, and the middle part of the pressing plate is provided with a flushing pipe, the inside of the flushing pipe is communicated with the inside of the high-pressure water pipe, the middle part of the membrane filter is provided with a membrane filter element, one end of the membrane filter element is provided with a round hole, the other end of the membrane filter is provided with a cover body, the inner side of the cover body is provided with a telescopic spring, the bottom end of the membrane filter is provided with a drain pipe, the inside of the drain pipe is communicated with the inside of the collecting box through a sewage conveying pipe, the collecting box is arranged at the top end of the.

Preferably, the top of each sewage discharge pipe is provided with a one-way valve, and the bottom of each sewage delivery pipe is provided with a sewage delivery valve.

Preferably, the high-pressure water pipe is communicated with an external water pipe, and a high-pressure valve is arranged at the top of the high-pressure water pipe.

Preferably, the middle part of the first mounting frame is respectively provided with a first filter, a second filter and a third filter, the bottom end of the first filter is communicated with the top end of the second filter through a guide pipe, and the bottom end of the second filter is communicated with the top end of the third filter through a guide pipe.

Preferably, the first filter and the third filter are internally provided with PP cotton filter elements, the size of the PP cotton filter elements in the first filter is larger than that of the PP cotton filter elements in the third filter, and the second filter is internally provided with an activated carbon filter element.

Preferably, a booster water pump is installed in the middle of the top end of the base, a water inlet end of the booster water pump is communicated with the bottom end of the third filter through a guide pipe, and a water outlet end of the booster water pump is respectively communicated with the interiors of the three membrane filters through the guide pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

1) during work, by means of matching use of the arranged high-pressure water pipe, the flushing pipe, the sewage discharge pipe and the like, water enters the flushing pipe after passing through the high-pressure water pipe by opening the high-pressure valve at the top of the high-pressure water pipe and the sewage delivery valve at the bottom of the sewage delivery pipe and then is sprayed out to flush foreign matters in the membrane filter element, the foreign matters are flushed to one end of the membrane filter and then enter the sewage discharge pipe, and then enter the collection box through the sewage delivery pipe, so that the membrane filter can be regularly flushed back, the blocking phenomenon is avoided, and the filtering performance of the membrane filter is ensured;

2) in the work, through the cooperation use of the first filter that sets up, second filter and third filter etc. it is inside to carry first filter with the raw water through external power unit, then the raw water loops through second filter and third filter in proper order, at this moment, the great foreign matter of granule filters in the raw water by first filter, the peculiar smell of second filter to the raw water adsorbs, the third filter filters the less foreign matter of granule in the raw water after that to realize the primary filter processing to the raw water, respond well.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the membrane filter of the present invention;

fig. 3 is an enlarged schematic structural view of a point a in fig. 2 according to the present invention;

in the figure: 1. a base; 2. a first mounting bracket; 3. a second mounting bracket; 4. a membrane filter; 5. a spring type telescopic rod; 6. pressing a plate; 7. a flush tube; 8. a high pressure water pipe; 9. a circular hole; 10. a tension spring; 11. a blow-off pipe; 12. a collection box; 13. a first filter; 14. a second filter; 15. a third filter; 16. a booster water pump; 17. a water outlet pipe; 18. a membrane cartridge.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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.

In the first embodiment, as shown in fig. 1-3, the utility model comprises a base 1, a first mounting frame 2 and a second mounting frame 3 are respectively installed on two sides of the top end of the base 1, three membrane filters 4 are installed on the middle of the second mounting frame 3 at equal intervals, the structures inside the three membrane filters 4 are the same, the treatment efficiency of raw water can be increased, two spring type telescopic rods 5 are installed on the inner wall of one side of the membrane filter 4, one ends of the two spring type telescopic rods 5 are fixedly connected with the outer wall of one side of a pressing plate 6, a flushing pipe 7 is installed on the middle of the pressing plate 6, the flushing pipe 7 can be ensured to be in close contact with a membrane filter core 18, the inside of the flushing pipe 7 is communicated with the inside of a high-pressure water pipe 8, a membrane filter core 18 is installed on the middle of the membrane filter 4, a round hole 9 is opened on one, the blow off pipe 11 is installed to the bottom of membrane filter 4, and the inside intercommunication of defeated dirty pipe and collecting box 12 is passed through in the inside of blow off pipe 11, is convenient for collect sewage, and collecting box 12 installs on the top of base 1, and outlet pipe 17 is all installed on the top of three membrane filter 4.

In the second embodiment, on the basis of the first embodiment, the top of each sewage discharge pipe 11 is provided with a one-way valve, and the bottom of each sewage discharge pipe is provided with a sewage conveying valve, so that foreign matters can be prevented from flowing back to the inside of the membrane filter 4.

In the third embodiment, on the basis of the first embodiment, the high-pressure water pipe 8 is communicated with the external water pipe, and the top of the high-pressure water pipe 8 is provided with a high-pressure valve, so that the circulation of water in the high-pressure water pipe 8 can be conveniently controlled.

Fourth embodiment, on the basis of first embodiment, first filter 13, second filter 14 and third filter 15 are installed respectively to the middle part of first mounting bracket 2, and the bottom of first filter 13 passes through the pipe and communicates with the top of second filter 14, and the bottom of second filter 14 passes through the pipe and communicates with the top of third filter 15, is convenient for filter raw water.

In the fifth embodiment, on the basis of the fourth embodiment, the PP cotton filter elements are installed inside the first filter 13 and the third filter 15, the PP cotton filter elements inside the first filter 13 are larger than the third PP cotton filter elements inside the third filter 15, and the activated carbon filter elements are installed inside the second filter 14, so that a good primary filtering effect can be achieved.

Sixth embodiment, on the basis of the first embodiment, a booster water pump 16 is installed in the middle of the top end of the base 1, a water inlet end of the booster water pump 16 is communicated with the bottom end of the third filter 15 through a guide pipe, and a water outlet end of the booster water pump 16 is respectively communicated with the interiors of the three membrane filters 4 through guide pipes, so that power can be provided to convey raw water.

The working principle is as follows: when the device works, firstly, raw water is conveyed into a first filter 13 through an external power mechanism, then the raw water sequentially passes through a second filter 14 and a third filter 15, at the moment, the first filter 13 filters foreign matters with large particles in the raw water, the second filter 14 absorbs peculiar smell of the raw water, then the third filter 15 filters the foreign matters with small particles in the raw water, so that primary filtration treatment of the raw water is realized, the effect is good, then the raw water after primary filtration is respectively conveyed into three membrane filters 4 through a booster water pump 16, ultrafiltration is carried out on the raw water through membrane filter elements 18 in the membrane filters 4, so that water treatment of the raw water is finished, and the treated water enters the external storage equipment through a water outlet pipe 17; after long-time use, more foreign matters can be accumulated in the membrane filter 4, at the moment, a high-pressure valve at the top of the high-pressure water pipe 8 and a sewage conveying valve at the bottom of the sewage conveying pipe are opened, water enters the inside of the washing pipe 7 after passing through the high-pressure water pipe 8 and then is sprayed out to wash the foreign matters in the membrane filter element 18, the foreign matters are washed to one end of the membrane filter 4 and then enter the sewage discharge pipe 11, and then the foreign matters enter the collecting box 12 through the sewage conveying pipe, so that the membrane filter 4 can be regularly back washed to avoid the blockage phenomenon, the effect is good, structures such as a flowmeter, a valve, a pressure valve and the like can be installed in a reasonable place according to actual needs, a user can conveniently control and observe the structures, in addition, a low-pressure protection device and a high-pressure protection device can be installed in the pressurizing and filtering process of the membrane filter 4, The excessive protection device for the raw water amount and the excessive protection device for the water outlet amount at the rear end of the membrane are matched with the alarm for use, and the alarm can be sent out when abnormality occurs to remind a worker to treat the water in time.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A membrane filtration device for water treatment, comprising a base (1), characterized in that: the membrane filter is characterized in that a first mounting frame (2) and a second mounting frame (3) are respectively mounted on two sides of the top end of the base (1), three membrane filters (4) are mounted on the middle portion of the second mounting frame (3) at equal intervals, the structures of the inner portions of the three membrane filters (4) are the same, two spring type telescopic rods (5) are mounted on the inner wall of one side of each membrane filter (4), one ends of the two spring type telescopic rods (5) are fixedly connected with the outer wall of one side of the pressing plate (6), a flushing pipe (7) is mounted in the middle of the pressing plate (6), the inner portion of the flushing pipe (7) is communicated with the inner portion of the high-pressure water pipe (8), a membrane filter core (18) is mounted in the middle of each membrane filter (4), a round hole (9) is formed in one end of each membrane filter core (18), a cover body is mounted at the other, the inside of blow off pipe (11) is through defeated dirty pipe and the inside intercommunication of collecting box (12), and collecting box (12) are installed on the top of base (1), and outlet pipe (17) are all installed on the top of three membrane filter (4).

2. A water treatment membrane filtration unit according to claim 1, wherein: and a check valve is arranged at the top of each sewage discharge pipe (11), and a sewage conveying valve is arranged at the bottom of each sewage conveying pipe.

3. A water treatment membrane filtration unit according to claim 1, wherein: the high-pressure water pipe (8) is communicated with an external water pipe, and a high-pressure valve is arranged at the top of the high-pressure water pipe (8).

4. A water treatment membrane filtration unit according to claim 1, wherein: the middle part of the first mounting frame (2) is respectively provided with a first filter (13), a second filter (14) and a third filter (15), the bottom end of the first filter (13) is communicated with the top end of the second filter (14) through a guide pipe, and the bottom end of the second filter (14) is communicated with the top end of the third filter (15) through a guide pipe.

5. A water treatment membrane filtration unit according to claim 4, wherein: the cotton filter core of equal PP is installed to the inside of first filter (13) and third filter (15), and the cotton filter core of PP's of first filter (13) inside size is greater than the cotton filter core's of PP's of third filter (15) inside size, and the active carbon filter core is installed to the inside of second filter (14).

6. A water treatment membrane filtration unit according to claim 1, wherein: the middle part of the top end of the base (1) is provided with a booster water pump (16), the water inlet end of the booster water pump (16) is communicated with the bottom end of the third filter (15) through a guide pipe, and the water outlet end of the booster water pump (16) is respectively communicated with the interiors of the three membrane filters (4) through guide pipes.