CN215403252U

CN215403252U - Membrane filtration device

Info

Publication number: CN215403252U
Application number: CN202120339586.XU
Authority: CN
Inventors: 陈清; 陈忱; 陈良刚
Original assignee: Hainan Litree Purifying Technology Co Ltd
Current assignee: Hainan Litree Purifying Technology Co Ltd
Priority date: 2021-02-05
Filing date: 2021-02-05
Publication date: 2022-01-04
Anticipated expiration: 2031-02-05

Abstract

The present invention relates to a membrane filtration device, which comprises: the upper end of the water purification membrane unit is provided with a first water production interface and a first air inlet interface; the water filtered by the water purification membrane unit can be discharged through the first water production interface; the air flow entering the first air inlet interface can clean the water purification membrane unit; the water production pipe is arranged at the upper end of the water purification membrane unit, and a first connecting head communicated with the inner cavity of the water production pipe is arranged on the pipe wall of the water production pipe; the first connecting head is communicated with the first water producing connector through a first branch pipe; the air inlet pipe is arranged at the upper end of the water purification membrane unit, and a second connector communicated with the inner cavity of the air inlet pipe is arranged on the pipe wall of the air inlet pipe; the second connector is communicated with the first air inlet interface. Compared with the traditional design, the device does not need to be integrally lifted out in the maintenance process, and the maintenance cost and the limited lifting influence can be reduced.

Description

Membrane filtration device

Technical Field

The utility model relates to the technical field of water purification, in particular to a membrane filtering device.

Background

The current scheme of membrane water purification mainly comprises pressurized membrane system water purification and immersed membrane system water purification. Wherein the submerged membrane system is more convenient from an installation perspective. In an immersed membrane system, a plurality of water purification membrane units and a mounting rack are generally included. Through the integrated water production pipe on the mounting bracket, the raw water filtered by the water purification membrane unit is discharged. In order to facilitate the discharge of the raw water purified by the water purification membrane unit, a water production pipe is generally designed at the lower end of the water purification membrane unit.

Because the immersed membrane system has a large volume and a heavy weight, the water purification membrane unit needs to be immersed in the water purification tank in a hoisting mode during installation of the immersed membrane system. In the water purification process, the working environment of the immersed membrane system is severe, the water purification membrane unit needs to be periodically overhauled, and the air inlet pipe or the aeration pipe of the water purification membrane unit is arranged at the lower end of the water purification membrane unit, so that the water purification membrane unit is convenient to clean. If the water purification membrane unit is lifted out in a lifting mode, on one hand, the lifting cost and the time cost are high, and on the other hand, the lifting is limited by the lifting site of a crane.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to optimize the design structure of the conventional submerged membrane system, and a membrane filtration device which facilitates later maintenance is provided.

A membrane filtration device, comprising:

the upper end of the water purification membrane unit is provided with a first water production interface and a first air inlet interface; the water filtered by the water purification membrane unit can be discharged through the first water production interface; the air flow entering the first air inlet interface can clean the water purification membrane unit;

the water production pipe is arranged at the upper end of the water purification membrane unit, and a first connecting head communicated with the inner cavity of the water production pipe is arranged on the pipe wall of the water production pipe; the first connecting head is communicated with the first water producing connector through a first branch pipe;

the air inlet pipe is arranged at the upper end of the water purification membrane unit, and a second connector communicated with the inner cavity of the air inlet pipe is arranged on the pipe wall of the air inlet pipe; the second connector is communicated with the first air inlet interface.

Above-mentioned membrane filtration device, owing to will water purification membrane unit first produce the water interface with first air inlet arranges water purification membrane unit's upper end, simultaneously produce the water pipe with the intake pipe equipartition is in water purification membrane unit's upper end, consequently when needs maintain the maintenance, only need reduce the water level height of raw water, make water purification membrane unit's upper end expose can be right first produce the water interface first air inlet produce the water pipe with maintenance such as intake pipe.

Compared with the traditional immersed water purification system, the membrane filtration device designed by the utility model does not need to be integrally lifted out during maintenance in the maintenance process, so that the maintenance cost can be well reduced and the influence of limited lifting can be better reduced.

In one embodiment, the water purification membrane unit comprises an upper end head;

the upper end head is connected with the upper end of the water purification membrane unit, and the first water production interface and the first air inlet interface are respectively arranged on the upper end head.

In one embodiment, the water purification membrane unit further includes: the lower end, the first supporting tube and the second supporting tube; the lower end is connected with the lower end of the water purification membrane unit, and a second water production interface and a second air inlet interface are arranged on the lower end;

the first supporting tube and the second supporting tube are respectively supported between the upper end head and the lower end head;

two ends of the first supporting pipe are respectively communicated with the first water producing interface and the second water producing interface;

and two ends of the second supporting pipe are respectively communicated with the first air inlet connector and the second air inlet connector.

In one embodiment, the bottom of the lower end head is provided with an aerator, and air flow can enter the aerator through the second air inlet interface and clean the water purification membrane unit.

In one embodiment, the membrane filtration device further comprises a mounting frame, and the water purification membrane unit is mounted on the mounting frame.

In one embodiment, the mounting frame includes a first side frame, a second side frame, and a plurality of connection rods connecting the first side frame and the second side frame, and the water purification film units are mounted on the plurality of connection rods.

In one embodiment, the lower end head of the water purification film unit is provided with a first groove and a second groove at intervals, and the first groove and the second groove are respectively in one-to-one correspondence with the connecting rods.

In one embodiment, a limiting member is disposed on one side of the water purifying film unit facing the first side frame and the second side frame.

In one embodiment, the first branch pipe is provided with an on-off valve.

In one embodiment, the membrane filtration device comprises a plurality of water purification membrane units which are symmetrically arranged along the axis of the water production pipe;

a plurality of first connecting joints are arranged along the axial direction of the water production pipe, the first connecting joints are all three-way connectors, one of the connectors is communicated with the inner cavity of the water production pipe, and the other two connectors of the first connecting joints are respectively communicated with the first water production connectors of any two water purification membrane units in the water purification membrane units;

follow the axis direction of intake pipe sets up a plurality of second connectors, a plurality of second connectors are the tee bend interface, one of them interface of a plurality of second connectors with the inner chamber intercommunication of intake pipe, two other interfaces of a plurality of second connectors respectively with first interface intercommunication of admitting air in two arbitrary water purification membrane units in a plurality of water purification membrane units.

Drawings

FIG. 1 is a schematic perspective view of a membrane filtration apparatus according to an embodiment of the present invention;

fig. 2 is an enlarged schematic view of a point a in fig. 1.

Description of reference numerals:

100. a water purification membrane unit; 110. a first water producing interface; 120. a first air inlet interface; 130. an upper end head; 140. a lower end head; 141. a first groove; 142. a second groove; 150. a limiting member;

200. a water production pipe; 210. a first connector; 220. a first branch pipe; 221. an on-off valve;

300. an air inlet pipe; 310. a second connector;

400. a mounting frame; 410. a first side frame; 420. a second side frame; 430. and (4) connecting the rods.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. 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. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, fig. 1 is a schematic perspective view illustrating a membrane filtration apparatus according to an embodiment of the present invention, which includes a water purification membrane unit 100, a water production pipe 200, and an air inlet pipe 300.

It should be noted that the water purification principle of the membrane filtration device of the present invention is an immersion type, that is, the water purification membrane unit 100 of the present invention is immersed in raw water to be purified, the purified raw water is located in the water purification membrane unit 100, and then the purified raw water of the water purification membrane unit 100 is discharged through the water production pipe 200. Since the raw water to be purified contains many impurities, which may be attached to the surface of the water purification membrane unit 100, the impurities attached to the surface of the water purification membrane unit 100 can be removed by introducing gas into the gas inlet pipe 300.

In a conventional submerged water purification system, from the perspective of drainage and installation, an air inlet pipe or an aeration pipe is generally disposed at the bottom of a mounting frame, so as to facilitate cleaning of a water purification membrane unit. Or the water production pipe and the immersed water purification system are designed into a whole. In the installation process of the traditional immersed water purification system, because the immersed water purification membrane unit is large in size and heavy in mass, the immersed water purification membrane unit is generally hoisted in a raw water tank in a hoisting mode. In the process of purifying water, the working environment of the immersion type water purification system is relatively harsh, for example, impurities contained in raw water may be attached to the surface of the water purification membrane unit, and acid and alkali substances contained in the raw water may corrode the water purification membrane unit. These external factors can damage the submerged water purification system, and thus periodic inspection and maintenance of the submerged water purification system is required.

Due to the structural design of the conventional immersion type water purification system, the immersion type water purification system needs to be lifted out integrally and then maintained. And the adoption of hoisting brings great hoisting cost and time cost on one hand, and on the other hand, the adoption of hoisting is also limited by the geographical position of the raw water pool, for example, if a building is newly built around the raw water pool, the crane cannot conveniently enter the building.

For this reason, there is a need for an improvement of the conventional immersion type water purification system. The utility model provides a membrane filtration device, which can be maintained and overhauled only by reducing the water level of raw water when maintenance and overhaul are needed, so that the upper end of a water purification membrane unit 100 is exposed.

Specifically, referring to fig. 1 and 2, the upper end of the water purification membrane unit 100 is provided with a first water production port 110 and a first air inlet port 120. Wherein, the water after the water purification membrane unit 100 filters can be discharged through the first water production interface 110, and the air current that the first air inlet interface 120 got into can wash the water purification membrane unit 100.

The water production pipe 200 is disposed at the upper end of the water purification membrane unit 100. Wherein, the pipe wall of the water production pipe 200 is provided with a first connector 210 communicated with the inner cavity of the water production pipe 200. The first connector 210 is in communication with the first water producing interface 110.

The intake pipe 300 is disposed at the upper end of the water purification membrane unit 100. Wherein, the pipe wall of the air inlet pipe 300 is provided with a second connector 310 communicating with the inner cavity of the air inlet pipe 300. The second connector 310 is in communication with the first air intake interface 120.

The working principle of the membrane filtering device is as follows: the membrane filtration device is hoisted and immersed in the raw water pool, and the raw water in the raw water pool permeates into the water purification membrane unit 100, so that the purpose of purifying the raw water is realized. The purified raw water is discharged into the water producing pipe 200 along the first water producing port, the first branch pipe 220 and the first connection head 210 at the upper end of the water purifying membrane unit 100 by a hydraulic pump or other power elements.

When the impurities attached to the surface of the water purification membrane unit 100 need to be removed, an air flow is introduced into the air inlet pipe 300 through an air pump or other air pressure elements, enters the water purification membrane unit 100 along the second connector 310 and the first air inlet interface 120, and then cleans the impurities attached to the surface of the water purification membrane unit 100.

When the membrane filtering device needs to be maintained and detected, the water level of the raw water tank is reduced, so that the first water producing connector 110 and the first air inlet connector 120 at the upper end of the water purifying membrane unit 100, the water producing pipe 200, the air inlet pipe 300, the first connector 210, the first branch pipe 220 and the second connector 310 are exposed, and the pipelines exposed out of the raw water surface can be maintained and detected on the premise that the membrane filtering device is not integrally hoisted.

In one embodiment, referring to fig. 1, the water purification membrane unit 100 includes an upper head 130. Wherein, the upper end head 130 is connected with the upper end of the water purification membrane unit 100, and the first water producing connector 110 and the first air inlet connector 120 are respectively arranged on the upper end head 130. The upper end head 130 of the clean water membrane unit 100 can facilitate the design of the first water producing port 110 and the first air inlet port 120 on the one hand, and the first upper end head 130 can facilitate the membrane module of the clean water membrane unit 100 to be installed in the upper end head on the other hand.

Further, the water purification membrane unit 100 further includes: a lower head 140, a first support tube (not shown), and a second support tube (not shown). Wherein, the lower end head 140 is connected with the lower end of the water purification membrane unit 100, and the lower end head 140 is provided with a second water production interface (not shown) and a second air inlet interface (not shown). The first supporting tube and the second supporting tube are respectively supported between the upper end head 130 and the lower end head 140, two ends of the first supporting tube are respectively communicated with the first water producing connector 110 and the second water producing connector, and two ends of the second supporting tube are respectively communicated with the first air inlet connector 120 and the second air inlet connector.

The lower end 140 can also facilitate installation of membrane modules in the water purification membrane unit 100, and the lower end 140 is provided with a second water production port, which is communicated with the first water production port 110 and the second water production port through the first support tube, so that purified raw water stored at the bottom end of the water purification membrane unit 100 can be discharged through the second water production port. Meanwhile, the second water producing interface is added to improve the efficiency of the water purifying membrane unit 100 for discharging purified raw water.

The lower end 140 is provided with a second air inlet, which is used for ventilating air from the first air inlet 120 to the second air inlet along the second support pipe, and air flow is led to the raw water pool to generate bubbles to clean impurities attached to the outer surface of the water purification membrane unit 100.

The first and second support tubes are disposed between the upper and

lower headers

130 and 140, and also serve the purpose of supporting the upper and

lower headers

130 and 140.

In one embodiment, an aerator (not shown) is disposed at the bottom of the lower head 140. The air flow can enter the aerator through the second air inlet interface and clean the water purification membrane unit 100. After the airflow enters the aerator, larger bubbles can be generated, so that the effect of better cleaning the water film unit 100 can be achieved.

In one embodiment, referring to fig. 1, the membrane filtration device further comprises a mounting frame 400. Wherein the water purifying membrane unit 100 is mounted on the mounting frame 400.

Further, the mounting frame 400 includes a first side frame 410, a second side frame 420, and a plurality of connecting rods 430, which are oppositely disposed. Wherein the connection rod 430 connects the first side frame 410 and the second side frame 420. For example, the first side frame 410 and the second side frame 420 are oppositely disposed, a plurality of mounting holes are formed in the first side frame 410, a plurality of mounting holes are also formed in the second side frame 420, the connection rod 430 is inserted through the plurality of mounting holes of the first side frame 410 and the plurality of mounting holes of the second side frame 420, the water purification membrane unit 100 is fixed on the connection rod 430, and the first side frame 410 and the second side frame 420 can prevent the water purification membrane unit 100 from falling down.

In order to stably mount the water purification membrane unit 100 on the mounting bracket 400, in one embodiment, the lower end 140 of the water purification membrane unit 100 is provided with a first groove 141 and a second groove 142 at intervals, and the first groove 141 and the second groove 142 correspond to the plurality of connection rods one to one.

It should be understood that the water purification membrane units 100 can be arranged side by side on the mounting frame 400, and therefore, a plurality of connecting rods 430 are provided, which is also convenient for arranging more water purification membrane units 100 on the mounting frame 400 in the following. The first groove 141 and the second groove 142 correspond to one connecting rod, respectively. In addition, the connection of the connection rod to the first and second side frames 410 and 420 can also be implemented by other connection methods, such as welding, screwing, and the like. When the plurality of water purification membrane units 100 are mounted on the mounting block 400, the first and second side frames 410 and 420 can confine the plurality of water purification membrane units 100 within the mounting block 400. In addition, the water production tube 200 or the air intake tube 300 can be installed at the upper ends of the first and second side frames 410 and 420 or be confined between the first and second side frames 410 and 420.

In order to prevent the water purification membrane units 100 from colliding with each other after being mounted on the mounting frame 400, in one embodiment, the water purification membrane units 100 are respectively provided with a stopper 150 at a side facing the first side frame 410 and the second side frame 420.

In one embodiment, referring to FIG. 2, the first branch pipe 220 is provided with a switch valve 221. Wherein the on-off valve 221 can control the opening or closing of the first branch pipe 220. For example, when a plurality of water purification membrane units 100 simultaneously discharge water into the water production pipe 200, when one of the water purification membrane units 100 needs to be repaired, the first branch pipe 220 is controlled to be closed by the on-off valve 221, and the other water purification membrane units 100 are kept working, so that the water purification efficiency of the water purification membrane units 100 can be improved.

In one embodiment, the membrane filtration device includes a plurality of water purification membrane units 100. Wherein, a plurality of water purification film units 100 are symmetrically arranged along the axis of the water production pipe 200.

The plurality of first connectors 210 are arranged along the axial direction of the water production pipe 200, each of the plurality of first connectors 210 is a three-way connector, one of the connectors 210 is communicated with the inner cavity of the water production pipe 200, and the other two connectors of the plurality of first connectors 210 are respectively communicated with the first water production connectors 110 of any two water purification membrane units 100 in the plurality of water purification membrane units 100. It should be understood that in order to facilitate the other two connectors of the first connector 210 to communicate with the first water production pipe 110 in the water purification membrane unit 100, the other two connectors of the first connector 210 communicate with the first water production pipes 110 of the two water purification membrane units 100 which are symmetrical and juxtaposed along the axis of the water production pipe 200, respectively.

The plurality of second connectors 310 are arranged along the axial direction of the air inlet pipe 300, each of the plurality of second connectors 310 is a three-way connector, one of the connectors of the plurality of second connectors 310 is communicated with the inner cavity of the air inlet pipe 300, and the other two connectors of the plurality of second connectors 310 are respectively communicated with the first air inlet connectors 120 of any two water purification membrane units in the plurality of water purification membrane units 100.

The advantage of this design is that the utilization of the water production pipe 200 and the air inlet pipe 300 can be improved, and the number of the water production pipe 200 and the air inlet pipe 300 can be reduced. For example, raw water purified by the water purification membrane units 100 disposed on both sides of the axis of the water production pipe 200 can be discharged into the water production pipe 200. When air is introduced into the air inlet pipe 300, impurities attached to the surfaces of the water purification membrane units 100 on both sides of the axis of the water production pipe 200 can be simultaneously cleaned.

The plurality of water purification membrane units 100 may be rearranged as needed, and the first connection head 210 and the second connection head 310 may be other multi-way connection ports. 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.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A membrane filtration device, comprising:

2. The membrane filtration device according to claim 1, wherein the water purification membrane unit comprises an upper head;

3. The membrane filtration device according to claim 2, wherein the water purification membrane unit further comprises: the lower end, the first supporting tube and the second supporting tube; the lower end is connected with the lower end of the water purification membrane unit, and a second water production interface and a second air inlet interface are arranged on the lower end;

4. The membrane filtration device according to claim 3, wherein the bottom of the lower end head is provided with an aerator, and air flow can enter the aerator through the second air inlet interface and clean the water purification membrane unit.

5. The membrane filtration device according to claim 3, further comprising a mounting frame on which the water purification membrane unit is mounted.

6. The membrane filtration device according to claim 5, wherein the mounting frame comprises a first side frame, a second side frame, and a plurality of connection bars connecting the first side frame and the second side frame, the water purification membrane unit being mounted on the plurality of connection bars.

7. The membrane filtering device according to claim 6, wherein the lower end of the water purifying membrane unit is provided with a first groove and a second groove at intervals, and the first groove and the second groove are respectively in one-to-one correspondence with the plurality of connecting rods.

8. The membrane filtration device according to claim 5, wherein a side of the water purification membrane unit facing the first side frame and the second side frame is provided with a stopper, respectively.

9. Membrane filtration unit according to claim 1, wherein the first branch pipe is provided with an on-off valve.

10. The membrane filtration device according to claim 1, wherein the membrane filtration device comprises a plurality of the water purification membrane units, which are symmetrically arranged along the axis of the water production pipe;