CN215506373U - Membrane belt cleaning device - Google Patents

Abstract

The present disclosure relates to the field of sewage treatment technologies, and in particular, to a membrane cleaning device, which includes a cleaning portion and a driving portion; the cleaning section is configured to clean the membrane; the driving part is configured to move the cleaning part along the surface of the film; wherein, the washing portion includes: a plurality of first tubes disposed at intervals along a first direction, and a length of the first tubes is configured to extend along a surface of the film; the outer surface of the first pipe body is provided with at least one brush body, and the length of the brush body extends along the axial direction of the first pipe body; the first tube is configured to be expandable in a radial direction of itself to bring the brush body into contact with the membrane; when needs wash the membrane, through adopting first body along the radial expansion of self to make the brush body can contact with the membrane, rethread drive division makes first body move along the surface of membrane, thereby makes the brush body carry out mechanical cleaning to the membrane, adopts mechanical cleaning to be favorable to reducing the energy consumption and reduce the medicine and consume.

Description

Membrane belt cleaning device

Technical Field

The disclosure relates to the technical field of sewage treatment, in particular to a membrane cleaning device.

Background

With the gradual improvement of sewage treatment requirements, research and application of MBR process technology have been continuously and rapidly developed in recent ten years, and the total domestic treatment scale is over 2,000 ten thousand meters³And/d, covering town sewage, industrial wastewater, landfill leachate and the like, but the current membrane cleaning has higher energy consumption and higher drug consumption.

SUMMERY OF THE UTILITY MODEL

The present disclosure provides a membrane cleaning device to solve the technical problems of high energy consumption and high drug consumption of membrane cleaning known to the inventor to some extent.

The present disclosure provides a membrane cleaning device, which includes:

a cleaning section configured to clean a membrane; and

a driving section configured to move the cleaning section along a surface of the film;

wherein the cleaning part includes: a plurality of first tubes spaced apart along a first direction, a length of the first tubes configured to extend along a surface of the film; the outer surface of the first pipe body is provided with at least one brush body, and the length of the brush body extends along the axial direction of the first pipe body; the first tube is configured to be expandable in a radial direction thereof to bring the brush body into contact with the membrane.

In any one of the above technical solutions, further, the cleaning part further includes: and the second pipe body is communicated with the first pipe body in parallel.

In any one of the above technical solutions, further, two brush bodies are symmetrically arranged along the radial direction of the first pipe body.

In any of the above technical solutions, further, the first tube is made of rubber or silica gel; the second pipe body is communicated with an air source device which is configured to inflate the first pipe body so as to expand the first pipe body along the radial direction of the first pipe body.

In any of the above technical solutions, further, the air source device is an air compressor, an air pump or an air storage tank.

In any of the above technical solutions, further, the brush body is in a bristle structure, or the brush body is a scouring pad.

In any of the above technical solutions, further, the driving portion includes at least one of an aeration portion or a linear reciprocating device.

In any of the above technical solutions, further, the aeration part includes a plurality of aeration pipes connected in parallel.

In any of the above technical solutions, further, the aeration pipe is provided with a strip-shaped outlet.

In any of the above technical solutions, further, the width of the strip-shaped outlet is 2mm to 4 mm.

The beneficial effect of this disclosure mainly lies in:

the membrane cleaning device provided by the present disclosure includes a cleaning portion and a driving portion; the cleaning section is configured to clean the membrane; the driving part is configured to move the cleaning part along the surface of the film; wherein, the washing portion includes: a plurality of first tubes disposed at intervals along a first direction, and a length of the first tubes is configured to extend along a surface of the film; the outer surface of the first pipe body is provided with at least one brush body, and the length of the brush body extends along the axial direction of the first pipe body; the first tube is configured to be expandable in a radial direction of itself to bring the brush body into contact with the membrane; when needs wash the membrane, through adopting first body along the radial expansion of self to make the brush body can contact with the membrane, rethread drive division makes first body move along the surface of membrane, thereby makes the brush body carry out mechanical cleaning to the membrane, adopts mechanical cleaning to be favorable to reducing the energy consumption and reduce the medicine and consume.

It is to be understood that both the foregoing general description and the following detailed description are for purposes of illustration and description and are not necessarily restrictive of the disclosure. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate the subject matter of the disclosure. Together, the description and drawings serve to explain the principles of the disclosure.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic diagram of the structure of a membrane cleaning device in one or more embodiments;

FIG. 2 is a schematic diagram of another perspective view of a membrane cleaning device in accordance with one or more embodiments;

FIG. 3 is a schematic view of yet another configuration of a membrane cleaning device in one or more embodiments;

FIG. 4 is a schematic view of one embodiment of a connection between the bristle structure and the first tube;

fig. 5 is a partial structural schematic view of an aeration pipe.

Icon:

101-a first tube; 102-a brush body; 103-a second tube;

104-an aerator pipe; 105-a strip outlet; 106-dovetail stage;

107-dovetail groove; 201-film.

Detailed Description

The technical solutions of the present disclosure will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present disclosure, but not all embodiments.

All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing and simplifying the present disclosure, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present disclosure, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present disclosure can be understood in specific instances by those of ordinary skill in the art.

Referring to fig. 1, in one or more embodiments, there is provided a film washing apparatus including a washing part and a driving part; the cleaning section is configured to clean the membrane; the driving section is configured to move the cleaning section along the surface of the film. The cleaning part comprises: a plurality of first tubes 101, the plurality of first tubes 101 being disposed at intervals in a first direction, and a length of the first tubes 101 being configured to extend along a surface of the film 201; the outer surface of the first pipe 101 is provided with at least one brush 102, and the length of the brush 102 extends along the axial direction of the first pipe 101; the first pipe 101 is configured to be able to expand along its own radial direction so as to make the brush 102 contact with the membrane, and since the membrane cleaning device can expand properly during cleaning, it can sufficiently form a brushing force with the membrane surface, so as to achieve a better cleaning effect, so as to achieve effective combination of the membrane cleaning device and the membrane surface, and enhance the scrubbing effect.

In one embodiment, the membrane cleaning device cleans a plurality of different membranes; the arrangement direction of the plurality of different films is parallel to the first direction. When the surface of the membrane is parallel to the vertical plane, the cleaning part of the membrane cleaning device moves up and down along the surface of the membrane under the driving of the driving part. Referring to fig. 3, when one brush 102 is disposed on the outer surface of the first tube 101, two side-by-side first tubes 101 are disposed between two adjacent membranes, so that the brushes 102 on the two side-by-side first tubes 101 clean two membrane surfaces opposite to the two membranes, respectively. When the surface of the membrane is not required to be cleaned, the first tube 101 is not expanded in its radial direction, so that the brush 102 is no longer in contact with the surface of the membrane.

The membrane cleaning device provided in at least one embodiment can be used in a membrane bioreactor with ceramic flat membrane or other membrane resistant to mechanical scrubbing to realize that the membrane cleaning device cleans the flat membrane in the membrane bioreactor. Because the ceramic flat membrane has high mechanical strength and is resistant to mechanical scrubbing (the physical scrubbing of the surface of the flat membrane is generally regarded as an effective cleaning mode), the physical scrubbing can effectively remove dirt on the surface of the membrane, and is also suitable for cleaning organic colloid impurities, thereby being beneficial to maintaining the normal operation of the membrane, being an effective method for recovering the membrane flux, and being free from maintenance especially for remote water supply or sewage treatment equipment (low professional level of maintenance personnel and high maintenance-free requirement on the equipment). In addition, the membrane cleaning device can also be used for other devices with flat membranes. When the membrane needs to be cleaned, the first pipe body 101 is expanded along the radial direction of the first pipe body 101, so that the brush body 102 can be in contact with the membrane, and the first pipe body 101 moves along the surface of the membrane through the driving part, so that the brush body 102 can be used for mechanically cleaning the membrane, and the mechanical cleaning is adopted, so that the energy consumption and the medicine consumption are reduced. The membrane cleaning device is suitable for online or offline cleaning of the plate-type ceramic membrane under different use conditions such as drinking water, reuse water, MBR and the like, and can quickly and effectively remove pollutants and organic matter adhesion layers on the membrane surface and ensure the filtration flux of the membrane.

In some embodiments, the cleaning portion further comprises a second tube 103, and the plurality of first tubes 101 are in parallel communication with the second tube 103, and each first tube 101 is supplied with fluid through the second tube 103.

In one embodiment, the first tube 101 and the second tube 103 may be integrally connected or detachably connected, so that the first tube 101 is easy to replace.

Referring to fig. 2, in some embodiments, two brush bodies 102 are symmetrically disposed along the radial direction of the first pipe 101, and when two brush bodies 102 are disposed, two membrane surfaces facing each other between two adjacent membranes are easily cleaned by two brush bodies 102 of one first pipe 101. In some alternative embodiments, the brush 102 is detachably and fixedly connected to the first tube 101, so that when the brush 102 is worn, the brush 102 on the first tube 101 can be replaced. Can dismantle fixed connection through the mode realization of forked tail joggle between brush body 102 and the first body 101, can realize like this that brush body 102 and first body 101 real-time circumference are fixed, when first body 101 drives brush body 102 and moves, brush body 102 can not rotate around the axis of first body 101.

In some embodiments, the first tube 101 is made of rubber or silicone; the second tube 103 communicates with an air supply device configured to inflate the first tube 101 so as to expand the first tube 101 in a radial direction of itself. The membrane cleaning is facilitated by using a readily available gas (e.g. air) as the fluid to expand the first tubular body 101 in its radial direction.

In one embodiment, after the gas source device passes gas through the second tube 103, since the first tube 101 is communicated with the second tube 103 and the first tube 101 can be expanded, the first tube 101 can be expanded after the gas source device is filled with the set gas, a gas pressure gauge and an electromagnetic valve can be further arranged between the gas source device and the second tube 103, and the electromagnetic valve is closed when the value of the gas pressure gauge reaches a set value; this ensures that the air pressure in the first tube 101 is maintained within a set range to ensure that the brush 102 is in contact with the membrane.

In some embodiments, the air supply device is an air compressor, air pump, or air reservoir. The air pump is used to conveniently fill air into the first tube 101.

In some embodiments, the brush body 102 is a bristle structure, or the brush body 102 is a scouring pad; the bristle structure is made of nylon, PBT, PP or TPE; when the brush body 102 adopts a bristle structure, the bristle structure comprises a carrier and bristles, and the bristles are uniformly distributed along the length direction of the carrier; the carrier and the first tube 101 are detachably and fixedly connected by means of dovetail joint, in one embodiment, as shown in fig. 4, the carrier is a dovetail table 106, the first tube 101 has a dovetail groove 107, and the dovetail table 106 is matched with the dovetail groove 107.

In some embodiments, the driving part includes at least one of an aeration part or a linear reciprocating device.

In one embodiment, the driving part includes an aeration part which generates an air wall to move the cleaning part up and down to clean the membrane. In one other embodiment, the driving part comprises a linear reciprocating device, a moving part of the linear reciprocating device is fixedly connected with the cleaning part, the moving part drives the cleaning part to move together, and the linear reciprocating device can be a linear slide rail, a linear screw rod or other devices capable of realizing the reciprocating movement of the cleaning part. In other embodiments, the driving part includes an aeration part and a linear reciprocating motion device, and when the aeration part is only required to move the cleaning part up and down, the linear reciprocating motion device and the cleaning part need to be disconnected.

In some embodiments, where an aeration section is employed, the aeration section includes a plurality of aeration tubes 104 in parallel communication. The aeration pipes are respectively communicated with an air conveying main pipe. Different aeration pipe 104 corresponds different first body 101 to when aeration pipe 104 produced the air wall, make first body 101 can reciprocate, the removal of cleaning portion relies on the air wall that forms to provide thrust, through the steerable moving speed of cleaning portion of the amount of wind of adjusting aeration portion. Adopt the aeration portion, be convenient for realize that membrane belt cleaning device carries out the pulsed and washs the membrane, regularly carry out the physics to the membrane surface and clean to effectively remove membrane surface dirt and organic colloid class impurity, make the membrane resume membrane flux, improve the water yield, increase membrane antipollution ability, extension membrane drug washing cycle, the cost is reduced, can make the operating efficiency of membrane improve 10 ~ 20%, and extension membrane off-line cleaning cycle, practice thrift medicament expense and labour cost, practice thrift manufacturing cost more than 20% to a certain extent. In some embodiments, different aeration strengths can be set according to the aeration rate, such as primary aeration and secondary aeration, wherein the aeration rate of the primary aeration is greater than that of the secondary aeration, so that pulsed physical cleaning can be realized by cleaning the membrane under different aeration strengths; moreover, the movement of the cleaning part among the membranes can be realized by adjusting the aeration air quantity of the aeration pipe 104 below the cleaning part so as to achieve the purpose of cleaning the surface of the membrane, and the strip-shaped outlet 105 of the aeration pipe 104 is in a slit shape, so that an air wall can be effectively formed.

Referring to fig. 5, in some embodiments, one or more strip-shaped outlets 105 are formed in the aerator pipe 104, and a length direction of the strip-shaped outlets 105 extends along a length direction of the aerator pipe 104; the aeration tubes 104 are arranged parallel to the surface of the membrane. When a plurality of strip-shaped outlets are arranged, the strip-shaped outlets extend along the length direction of the aeration pipe.

In one embodiment, the width of the strip outlet 105 is 2mm to 4mm, for example, the width of the strip outlet 105 is 2.5mm, 3mm, 3.5mm, or 4 mm. In some other embodiments, the width of the strip-shaped outlet 105 may also be 1mm or 1.5 mm.

The working principle of the membrane cleaning device for cleaning the membrane provided in at least one embodiment is as follows: monitoring the membrane, and starting pulse type cleaning when any one condition of the operation pressure difference or the operation time of the membrane meets a set threshold value; when the diameter of the first pipe body 101 is increased by 2 mm-4 mm, the electromagnetic valve closes air inlet; starting primary aeration, wherein the aeration of an aeration pipe 104 below the cleaning part forms an air wall to push the cleaning part to move up and down at the moving speed of 0.3-1.0 m/min; when the cleaning is finished, the film layer pollutants fall off, and the film flux is recovered. In certain cases, the above steps may be repeated.

The membrane belt cleaning device that this at least one embodiment of disclosure provided's wearability is better, still has characteristics such as anti mildew and antibiotic, through monitoring the membrane, when detecting that the membrane reaches the cleaning degree, just can realize cleaning part to membrane self-cleaning, the cleaning performance is good.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present disclosure, and not for limiting the same; while the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present disclosure.

Claims (10)

1. A membrane cleaning device, comprising:

a cleaning section configured to clean a membrane; and

a driving section configured to move the cleaning section along a surface of the film;

wherein the cleaning part includes: a plurality of first tubes (101), the plurality of first tubes (101) being spaced apart in a first direction, and a length of the first tubes (101) being configured to extend along a surface of the film; the outer surface of the first pipe body (101) is provided with at least one brush body (102), and the length of the brush body (102) extends along the axial direction of the first pipe body (101); the first tubular body (101) is configured to be expandable in a radial direction thereof to bring the brush body (102) into contact with the membrane.

2. The membrane cleaning device according to claim 1, wherein the cleaning section further comprises: and a plurality of second tubes (103), wherein the first tubes (101) are communicated with the second tubes (103) in parallel.

3. The membrane cleaning device according to claim 2, characterized in that two brush bodies (102) are symmetrically arranged in a radial direction of the first pipe body (101).

4. The membrane cleaning device according to claim 2 or 3, wherein the first tube (101) is made of rubber or silicone; the second tube (103) is in communication with an air supply device configured to inflate the first tube (101) so as to cause the first tube (101) to expand in a radial direction of itself.

5. The membrane cleaning device according to claim 4, wherein the air supply device is an air compressor, an air pump or an air tank.

6. The membrane cleaning device according to any one of claims 1-3, characterized in that the brush body (102) is a bristle structure or the brush body (102) is a scouring pad.

7. The membrane cleaning device according to any one of claims 1 to 3, wherein the driving section includes at least one of an aeration section or a linear reciprocating device.

8. The membrane cleaning device according to claim 7, characterized in that the aeration section comprises a plurality of aeration tubes (104) communicating in parallel.

9. The membrane cleaning device according to claim 8, wherein the aeration pipe (104) is provided with a strip-shaped outlet (105).

10. The membrane cleaning device according to claim 9, wherein the strip-shaped outlet (105) has a width of 2mm to 4 mm.

Images