CN219701584U - Immersed membrane filter device - Google Patents

Abstract

The utility model relates to an immersed membrane filtration device. The immersed membrane filtration device comprises a frame, at least one membrane element group, a water production pipeline and a connecting pipe group, wherein: the membrane element group comprises a plurality of membrane elements distributed along a first direction and arranged in the frame, and the upper end of each membrane element is provided with a water producing port which is used for producing filtered water filtered by the membrane elements; the water production pipeline comprises at least one water production branch pipe which is arranged on the frame; the connecting pipe group comprises a water production three-way pipe which is respectively communicated with two adjacent water production ports and one water production branch pipe, and the water production three-way pipe is used for collecting and conveying filtered water to the water production branch pipe. The membrane elements distributed along the first direction in each adjacent two membrane element groups are communicated with one water producing branch pipe by utilizing the water producing three-way pipe, so that compared with the prior art that each membrane element in the same row is correspondingly communicated with one water producing branch pipe, the number of the water producing branch pipes is reduced, the manufacturing cost is reduced, and the pipeline design and the installation process are simplified.

Description

Immersed membrane filter device

Technical Field

The utility model relates to the technical field of water purification, in particular to an immersed membrane filter device.

Background

The selective separation characteristic of the membrane separation technology makes the membrane separation technology widely applied in the water treatment industry. The device for purifying water by adopting the membrane separation technology at present mainly comprises a pressure type membrane filter device and an immersed membrane filter device, wherein the immersed membrane filter device comprises a frame and a plurality of membrane elements arranged on the frame, the membrane elements are arranged in a matrix form, water producing ports are formed in each membrane element, and a plurality of water producing ports in the same row are communicated with one water producing branch pipe.

However, the membrane elements arranged in the form of a matrix are provided with a plurality of columns, namely, each membrane element in the same row is correspondingly communicated with one water production branch pipe, so that the design mode easily causes a plurality of branch pipes in the water production pipeline, the pipeline design is complex, and the manufacturing cost is high and the installation is complex.

Disclosure of Invention

Based on this, it is necessary to provide an immersed membrane filtration device aiming at the problem of complex pipeline layout in the existing immersed membrane filtration device.

An immersed membrane filtration device comprising a frame, at least one membrane element group, a water production line and a connection tube group, wherein:

the membrane element group comprises a plurality of membrane elements distributed along a first direction and is arranged in the frame, the upper end of each membrane element is provided with a water producing port, and the water producing ports are used for producing filtered water filtered by the membrane elements;

the water production pipeline comprises at least one water production branch pipe, and the water production branch pipe is arranged on the frame;

the connecting pipe group comprises a water production three-way pipe, the water production three-way pipe is respectively communicated with two adjacent water production ports and one water production branch pipe, and the water production three-way pipe is used for collecting and conveying filtered water to the water production branch pipe.

In one embodiment, the aeration pipeline is further comprised, the connecting tube group further comprises an aeration tee, wherein:

the aeration pipeline comprises at least one air inlet branch pipe, and the air inlet branch pipe is arranged on the frame;

the upper end of each membrane element is also provided with an aeration air inlet which is spaced from the water producing port and is used for inputting first gas for cleaning the membrane elements;

two aeration air inlets of two adjacent membrane elements along the first direction are adjacently arranged; and/or, the water producing ports in two adjacent membrane elements are adjacently arranged along the first direction;

the aeration three-way pipe is respectively communicated with two adjacent aeration air inlets and one air inlet branch pipe and is used for shunting and conveying the first gas in the air inlet branch pipe to the aeration air inlets.

In one embodiment, the water producing branch pipe is provided with at least one water inlet pipe communicated with the water producing branch pipe, the water producing three-way pipe is respectively communicated with two adjacent water producing ports and one water inlet pipe, the air inlet branch pipe is provided with at least one air supply pipe communicated with the water producing ports and one water inlet pipe, and the aeration three-way pipe is respectively communicated with two adjacent aeration air inlets and one air supply pipe.

In one embodiment, the number of the membrane element groups is multiple, the multiple membrane element groups are distributed along a second direction, the second direction is perpendicular to the first direction, the water inlet pipes distributed along the second direction are arranged on the water producing branch pipes, the water producing ports on the membrane elements distributed along the second direction are in one-to-one correspondence with the water inlet pipes on the same water producing branch pipe, the air inlet branch pipes are provided with the multiple air supply pipes distributed along the second direction, and the aeration air inlets on the membrane elements distributed along the second direction are in one-to-one correspondence with the air supply pipes on the same air inlet branch pipe.

In one embodiment, the device further comprises a connecting pipeline, the connecting pipeline comprises a first pipeline and a second pipeline, the first pipeline and the second pipeline are arranged on the frame at intervals, and the water production branch pipe and the air inlet branch pipe are arranged between the first pipeline and the second pipeline and connected with the first pipeline and the second pipeline.

In one embodiment, the first pipeline is a main water producing pipe, one end of the water producing branch pipe is communicated with the first pipeline, the other end of the water producing branch pipe is fixed on the second pipeline and is not communicated with the second pipeline, and the main water producing pipe is used for collecting the filtered water in the water producing branch pipe.

In one embodiment, the second pipe is an air inlet main pipe, one end of the air inlet branch pipe is communicated with the second pipe, the other end of the air inlet branch pipe is fixed on the first pipe and is not communicated with the first pipe, and the air inlet main pipe is used for conveying the first gas to the air inlet branch pipe.

In one embodiment, the first pipe and the second pipe are main pipes for producing water, one end of the water producing branch pipe is communicated with the first pipe, the other end of the water producing branch pipe is communicated with the second pipe, and two ends of the air inlet branch pipe are respectively and correspondingly fixed on the first pipe and the second pipe and are not communicated with the first pipe and the second pipe.

In one embodiment, the connecting pipe further includes a third pipe, the third pipe is fixed on the frame, the extending direction of the third pipe is parallel to the first direction, the third pipe is an air inlet main pipe and is located above the air inlet branch pipe, and the third pipe is communicated with the air inlet branch pipe.

In one embodiment, the water producing three-way pipe comprises a first water producing main pipe and two first water producing branch pipes, wherein the two first water producing branch pipes are arranged on the pipe wall of the first water producing main pipe at intervals and are communicated with the first water producing main pipe.

According to the immersed membrane filtering device, each two adjacent membrane elements distributed along the first direction in the membrane element group are communicated with one water producing branch pipe by utilizing the water producing three-way pipe, compared with the prior art that each membrane element in the same row is correspondingly communicated with one water producing branch pipe, the number of the water producing branch pipes is reduced, the design of a pipeline is simplified, and therefore, the installation is simplified, and the manufacturing cost is reduced.

Drawings

Fig. 1 is a schematic structural diagram of an immersed membrane filtration device provided by the utility model.

Fig. 2 is a schematic structural diagram of another submerged membrane filtration device according to the present utility model.

Fig. 3 is a schematic diagram of a water-producing three-way pipe according to the present utility model.

Wherein:

10. an immersed membrane filtration device; a. a first direction; b. a second direction;

100. a frame;

200. a membrane element group; 210. a membrane element; 211. an upper end cap; 2111. a water producing port; 2112. an aeration air inlet; 212. a hollow fiber membrane; 213. an aerator;

300. a water production pipeline; 310. a water producing branch pipe; 320. a water inlet pipe;

400. connecting the tube group; 410. a water-producing three-way pipe; 411. a first water production main pipe; 412. a first moisture producing tube; 420. a second tee;

500. an aeration pipeline; 510. an air inlet branch pipe; 520. an air supply pipe;

600. a connecting pipe; 610. a first pipe; 611. a first connection port; 612. a second blind hole; 620. a second pipe; 630. a third conduit; 640. a fixing plate;

700. a hoop; 800. a flange interface; 900. lifting lugs.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that, if any, these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., are used herein with respect to the orientation or positional relationship shown in the drawings, these terms refer to the orientation or positional relationship for convenience of description and simplicity of description only, and do not indicate or imply that the apparatus or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

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

In the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If 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, if any, are for descriptive purposes only and do not represent a unique embodiment.

Referring to fig. 1, fig. 1 shows a schematic structural diagram of an immersed membrane filtration device 10 according to an embodiment of the present utility model, wherein the immersed membrane filtration device 10 is applied to the field of water purification, and the immersed membrane filtration device 10 comprises a frame 100, at least one membrane element group 200, a water production pipeline 300 and a connecting tube group 400, wherein:

the membrane element group 200 comprises a plurality of membrane elements 210 distributed along a first direction a, the membrane element group 200 is arranged in the frame 100, water producing ports 2111 are formed in the upper end of each membrane element 210, the water producing ports 2111 are used for producing filtered water filtered by the membrane elements 210, when the membrane element group 200 is specifically arranged, the membrane elements 210 comprise an upper end cover 211, hollow fiber membranes 212 and an aerator 213 which are sequentially arranged, the water producing ports 2111 are formed in the top end of the upper end cover 211, the hollow fiber membranes 212 are used for filtering raw water to form filtered water, and the number of the membrane elements 210 distributed along the first direction a in the membrane element group 200 can be 2, 3, 4, 5 or more;

the water producing pipeline 300 includes at least one water producing branch pipe 310, the water producing branch pipe 310 is disposed on the frame 100, when the water producing branch pipe 310 is specifically disposed, the water producing branch pipe 310 is erected on the upper end of the frame 100, the number of the water producing branch pipes 310 can be 1, 2, 3, 4 or more, and each two adjacent membrane elements 210 distributed along the first direction a in the membrane element group 200 are a pair of membrane elements, and each pair of membrane elements corresponds to one water producing branch pipe 310;

the connecting tube set 400 comprises a water-producing tee 410, wherein the water-producing tee 410 is respectively communicated with two adjacent water-producing ports 2111 and one water-producing branch pipe 310, and the water-producing tee 410 is used for collecting and delivering filtered water to the water-producing branch pipe 310. Through the above arrangement, a pair of membrane elements can be communicated with one water producing branch pipe 310 by using one water producing three-way pipe 410, compared with the prior art that each membrane element in the same row is correspondingly communicated with one water producing branch pipe, the number of the water producing branch pipes is reduced, the design of the pipeline is simplified, and therefore, the installation is simplified and the manufacturing cost is reduced.

In the above-mentioned submerged membrane filtration device 10, by using the water-producing tee 410 to communicate each two adjacent membrane elements 210 distributed along the first direction a in the membrane element group 200 with one water-producing branch pipe 310, compared with the present case that each membrane element 210 in the same row is correspondingly communicated with one water-producing branch pipe 310, the number of water-producing branch pipes 310 is reduced, the design of the pipeline is simplified, and therefore, the installation is simplified and the manufacturing cost is reduced.

In order to conveniently clean the hollow fiber membrane 212, an aeration air inlet is further formed on each membrane element, and similarly, a plurality of aeration air inlets in the same row are communicated with an air inlet branch pipe, that is, each membrane element in the same row is correspondingly communicated with an air inlet branch pipe, in order to simplify the setting of an aeration pipeline, a preferred embodiment, the submerged membrane filtration device 10 further comprises an aeration pipeline 500, and the connecting tube group 400 further comprises an aeration three-way pipe, wherein:

aeration line 500 includes at least one air inlet branch 510, air inlet branch 510 is disposed on frame 100, and when the aeration line is specifically disposed, the number of air inlet branches 510 may be 1, 2, 3, 4 or more, air inlet branches 510 are disposed on the upper end of frame 100, and air inlet branches 510 are disposed at intervals from water producing branch 310;

the upper end of each membrane element 210 is also provided with an aeration air inlet 2112 which is spaced from the water producing port 2111, the aeration air inlet 2112 is used for inputting first gas for cleaning the membrane elements 210, when the membrane elements are specifically arranged, the top end of the upper end cover 211 is provided with an aeration air inlet 2112 which is spaced from the water producing port 2111, the first gas, namely compressed air, is conveyed to the aerator 213 through the aeration air inlet 2112, and the aerator 213 is used for releasing the compressed air, so that the compressed air performs gas scrubbing on the hollow fiber membranes 212 and prevents the hollow fiber membranes 212 from being blocked;

two aeration inlet ports 2112 in adjacent two membrane elements 210 are disposed adjacent in the first direction a; and/or, the water producing ports 2111 in two adjacent membrane elements 210 are disposed adjacent to each other along the first direction a;

the aeration three-way pipe is respectively communicated with two adjacent aeration air inlets 2112 and one air inlet branch pipe 510, and is used for shunting and conveying the first gas in the air inlet branch pipe 510 to the aeration air inlets 2112. Through the arrangement, each two adjacent membrane elements 210 distributed along the first direction a can be communicated with one air inlet branch pipe 510 by utilizing one aeration three-way pipe, compared with the prior art that each membrane element 210 in the same row is correspondingly communicated with one air inlet branch pipe 510, the number of the air inlet branch pipes 510 is reduced, the design of a pipeline is simplified, and therefore, the installation is simplified, and the manufacturing cost is reduced. And the water producing branch pipe 310 and the air inlet branch pipe 510 are fixed at the upper end of the frame 100, and the membrane element 210 is communicated with the water producing branch pipe 310 and the air inlet branch pipe 510 by utilizing the water producing three-way pipe 410 and the aeration three-way pipe, so that a separate membrane pressing device is not needed to fix the membrane element 210, the manufacturing cost is reduced, the installation is more convenient, and the membrane element support rod is arranged at the bottom of the frame 100 for stabilizing the membrane element 210.

As will be appreciated, each of the membrane elements 210 is provided with a water producing port 2111 and an aeration inlet port 2112, and for convenience in arranging the water producing branch pipe 310 and the air intake branch pipe 510, the water producing port 2111 and the aeration inlet port 2112 of each of the membrane elements 210 may be arranged along the first direction a, and two aeration inlet ports 2112 of two membrane elements 210 adjacent along the first direction a or two water producing ports 2111 of each of the membrane element groups 200 may be arranged adjacent to each other, so that two membrane elements 210 adjacent along the first direction a have a pair of adjacent aeration inlet ports 2112 or water producing ports 2111, for example, when three membrane elements 210 are arranged along the first direction a in the membrane element group 200, the membrane element group 200 has a pair of adjacent water producing ports 2111 and a pair of adjacent aeration inlet ports 2112 arranged along the first direction a, and thus the air intake branch pipe 510 and the water producing branch pipe 310 are alternately arranged along the first direction a when the number of membrane elements 210 in each of the membrane element group 200 is at least three. With the above arrangement, the first membrane element 210 and the end membrane element 210 in each membrane element group 200 have the water producing port 2111 or the aeration inlet 2112 which cannot be paired, and a single-port pipe may be provided to connect the water producing port 2111 or the aeration inlet 2112 to the water producing branch pipe 310 or the air intake branch pipe 510, respectively.

In order to conveniently realize the communication between the water producing port 2111 and the water producing branch pipe 310 and the communication between the aeration inlet 2112 and the air inlet branch pipe 510, specifically, at least one water inlet pipe 320 communicated with the water producing branch pipe 310 is arranged on the water producing branch pipe 410, the water producing three-way pipe 410 is respectively communicated with two adjacent water producing ports 2111 and one water inlet pipe 320, at least one air supply pipe 520 communicated with the water producing ports 510 is arranged on the air inlet branch pipe 510, and the aeration three-way pipe is respectively communicated with two adjacent aeration inlet 2112 and one air supply pipe 520. When specifically arranged, the water inlet pipe 320 is perpendicular to the water-producing branch pipe 310, and the air supply pipe 520 is perpendicular to the air inlet branch pipe 510.

In order to better optimize the water producing pipeline 300 and the aeration pipeline 500, more specifically, the number of the membrane element groups 200 is plural, the plurality of membrane element groups 200 are arranged along the second direction b, the second direction b is perpendicular to the first direction a, the water producing branch pipes 310 are provided with a plurality of water inlet pipes 320 distributed along the second direction b, water producing ports 2111 of the membrane elements 210 arranged along the second direction b are in one-to-one correspondence with the water inlet pipes 320 of the same water producing branch pipe 310, the air inlet branch pipes 510 are provided with a plurality of air supplying pipes 520 distributed along the second direction b, and aeration air inlet ports 2112 of the membrane elements 210 arranged along the second direction b are in one-to-one correspondence with the air supplying pipes 520 of the same air inlet branch pipe 510. In a specific arrangement, the number of the membrane element assemblies 200 may be 2, 3, 4, 5 or more, and the number of the water inlet pipes 320 and the number of the air supply pipes 520 are generally set to be the same as the number of the membrane element assemblies 200. With the above arrangement, as will be understood, the mulching film element groups 200 are arranged in a row along the first direction a in each of the film element groups 200, and the plurality of mulching film element groups 200 are arranged in a plurality of rows along the second direction b, so that the film elements 210 are arranged in a matrix form, and each two adjacent rows of the film elements 210 are communicated with the same water-producing branch pipe 310 or air-intake branch pipe 510 through the water-producing three-way pipe 410 or the air-intake three-way pipe, and by the above arrangement, the number of the water-producing branch pipes 310 and the air-intake branch pipes 510 is greatly reduced, and the water-producing pipeline 300 and the air-intake pipeline 500 are simplified.

When the number of the membrane element groups 200 is excessive, that is, when the number of the membrane elements 210 in each column is excessive, each corresponding water producing branch pipe 310 or air inlet branch pipe 510 in each column needs to be customized to meet the length requirement, in order to make the water producing branch pipe 310 and the air inlet branch pipe 510 have a better application range, a plurality of water producing branch pipes 310 or air inlet branch pipes 510 with unit length can be arranged in series, so that the universality of the water producing branch pipes 310 and the air inlet branch pipes 510 is stronger, and the mass production of the water producing branch pipes 310 and the air inlet branch pipes 510 is facilitated, and meanwhile, the modular array expansion of the immersed membrane filtration device 10 is also facilitated.

Referring to fig. 2, fig. 2 is a schematic structural view of another submerged membrane filtration apparatus 10 according to an embodiment of the present utility model, in some embodiments, in order to reasonably arrange the water producing branch pipe 310 and the air inlet branch pipe 510, specifically, the submerged membrane filtration apparatus 10 further includes a connection pipe 600, the connection pipe 600 includes a first pipe 610 and a second pipe 620, the first pipe 610 and the second pipe 620 are spaced apart from each other and disposed on the frame 100, the water producing branch pipe 310 and the air inlet branch pipe 510 are installed between the first pipe 610 and the second pipe 620, and the water producing branch pipe 310 and the air inlet branch pipe 510 are connected to the first pipe 610 and the second pipe 620. In a specific arrangement, the extending directions of the first pipe 610 and the second pipe 620 are parallel to the first direction a, the first pipe 610 and the second pipe 620 are arranged at the top end of the frame 100 along the second direction b at intervals, the extending directions of the water producing branch pipe 310 and the air inlet branch pipe 510 are the second direction b, the water producing branch pipe 310 and the air inlet branch pipe 510 are perpendicular to the first pipe 610 and the second pipe 620, and the water producing branch pipe 310 and the air inlet branch pipe 510 are fixed on the first pipe 610 and the second pipe 620 through the anchor ear 700.

In order to collect filtered water more conveniently, more specifically, the first pipe 610 is a main pipe for water production, one end of the water production branch pipe 310 is communicated with the first pipe 610, and the other end of the water production branch pipe 310 is fixed to the second pipe 620 and is not communicated with the second pipe 620, and the main pipe for water production is used for collecting filtered water in the water production branch pipe 310. When the device is specifically arranged, a first connecting port 611 communicated with the first pipeline 610 is formed on the first pipeline 610, the first connecting port 611 is communicated with one end of the water production branch pipe 310, and the water production branch pipe 310 is fixed with the first pipeline 610 through the anchor ear 700; the second pipe 620 is provided with a first blind hole which is not communicated with the second pipe 620, the first blind hole is abutted with the other end of the water producing branch pipe 310, the water producing branch pipe 310 is fixed with the second pipe 620 through the anchor ear 700, and the first connecting ports 611 are opposite to the first blind holes one by one. In order to conveniently transport the filtered water collected in the main water producing pipe to a designated position, a first collecting port communicated with the main water producing pipe is formed in the main water producing pipe, a flange interface 800 can be installed on the first collecting port, and the filtered water is transported to the designated position through a pipeline externally connected with the flange interface 800.

In order to more conveniently transfer the first gas, more specifically, the second pipe 620 is an intake main pipe, one end of the intake branch pipe 510 is communicated with the second pipe 620, and the other end of the intake branch pipe 510 is fixed to the first pipe 610 without being communicated with the first pipe 610, and the intake main pipe is used to transfer the first gas to the intake branch pipe 510. In the specific arrangement, the second pipe 620 is further provided with a second connection port which is communicated with the second pipe 620, the second connection port and the first blind hole are alternately arranged, the second connection port is communicated with one end of the air inlet branch pipe 510, and the air inlet branch pipe 510 is fixed with the second pipe 620 through the anchor ear 700; the first pipeline 610 is also provided with second blind holes 612 which are not communicated with the first pipeline 610, the second blind holes 612 and the first connecting ports 611 are alternately arranged, the second blind holes 612 are abutted with the other ends of the air inlet branch pipes 510, the air inlet branch pipes 510 are fixed with the first pipeline 610 through the anchor clamps 700, and the second connecting ports and the second blind holes 612 are arranged in a one-to-one opposite mode. In order to conveniently convey the first gas, a second collecting port communicated with the air inlet main pipe is formed in the air inlet main pipe, a flange interface 800 can be installed on the second collecting port, and external first gas is input into the immersed membrane filtration device 10 through a pipeline externally connected with the flange interface 800.

Referring again to fig. 1, when the number of the membrane elements 210 per row is large, in order to uniformly distribute the filtered water in the water producing branch pipe 310, more specifically, the first pipe 610 and the second pipe 620 are all water producing main pipes, one end of the water producing branch pipe 310 is communicated with the first pipe 610, the other end of the water producing branch pipe 310 is communicated with the second pipe 620, and both ends of the air inlet branch pipe 510 are respectively fixed to the first pipe 610 and the second pipe 620 without being communicated with the first pipe 610 and the second pipe 620. In a specific arrangement, the first connection ports 611 on the first pipeline 610 and the second connection ports on the second pipeline 620 are opposite to each other, one end of the water producing branch pipe 310 is communicated with the first connection ports 611, the other end of the water producing branch pipe 310 is communicated with the second connection ports, the second blind holes 612 on the first pipeline 610 and the first blind holes on the second pipeline 620 are opposite to each other, one end of the water producing branch pipe 310 is connected with the first blind holes, the other end of the water producing branch pipe 310 is communicated with the second blind holes 612, the second connection ports are alternately arranged with the first blind holes, and the second blind holes 612 are alternately arranged with the first connection ports 611. With the above arrangement, the produced water of the membrane element 210 is collected to the first lateral pipe and the second lateral pipe through the produced water branch pipe 310, and is produced through the first collecting port on the produced water main pipe.

When the number of the membrane elements 210 per line is large, the connection pipe 600 further includes a third pipe 630, the third pipe 630 being fixed to the frame 100, the third pipe 630 extending in parallel with the first direction a, the third pipe 630 being an intake main, the third pipe 630 being located above the intake branch 510, the third pipe 630 being in communication with the intake branch 510, for better transfer of the first gas. In a specific arrangement, the third pipe 630 is spaced apart from the first pipe 610 and the second pipe 620, and by the arrangement, when the third pipe 630 is an air intake main pipe, the third pipe 630 is provided with a second collecting port, and the first gas, i.e., the compressed air, input from the second collecting port is dispersed from the third pipe 630 into the air intake branch pipes 510 on both sides and enters the aerator 213, and the membrane element 210 is scrubbed by the aerator 213.

When the device is specifically arranged, the fixing plates 640 are arranged at two ends of the third pipeline 630, the lower ends of the fixing plates 640 are connected with the frame 100, a plurality of conveying pipes communicated with the third pipeline 630 are arranged on the third pipeline 630 at intervals along the first direction a, the conveying pipes are communicated with the air inlet branch pipes 510, and the conveying pipes are connected with but not communicated with the water producing branch pipes 310. When the number of the membrane elements 210 in each row is too large, the plurality of water producing branch pipes 310 are connected in series through two horizontal pipe orifices of the first three-way pipe, the plurality of air inlet branch pipes 510 are connected in series through two horizontal pipe orifices of the second three-way pipe 420, the water producing branch pipes 310 are fixed with the first three-way pipe through the anchor clamps 700, the air inlet branch pipes 510 are fixed with the second three-way pipe 420 through the anchor clamps 700, the vertical pipe orifice of the first three-way pipe is not communicated with the conveying pipe, and the vertical pipe orifice of the second three-way pipe 420 is communicated with the conveying pipe.

It should be understood that the third pipe 630 may also be used as a main water producing pipe, the original aeration pipe 500 is changed into the water producing pipe 300, the first pipe 610 and the second pipe 620 are used as main air intake pipes, the original water producing pipe 300 is changed into the aeration pipe 500, and only the water producing port 2111 and the aeration air inlet 2112 on the membrane element 210 need to be positioned in opposite directions.

Referring to fig. 3, fig. 3 is a schematic diagram of a water producing tee 410 according to an embodiment of the present utility model, in some embodiments, in order to conveniently connect two adjacent water producing ports 2111 with one water producing branch pipe 310, a preferred embodiment of the water producing tee 410 includes a first water producing main 411 and two first water producing branch pipes 412, where the two first water producing branch pipes 412 are disposed at intervals on a pipe wall of the first water producing main 411 and are connected with the first water producing main 411.

When the device is specifically arranged, the first water producing main pipe 411 and the two first water producing branch pipes 412 are vertically arranged, the first water producing main pipe 411 is of a cavity structure with one end open, the open ends of the two first water producing branch pipes 412 are one sides deviating from the open ends of the first water producing main pipe 411, the outer wall of the first water producing main pipe 411 can be also provided with a sealing groove, and the inner walls of the two first water producing branch pipes 412 are smooth; when the water producing tee 410 is used, two first water producing branch pipes 412 are in socket-joint sealing connection with two adjacent water producing ports 2111 in each row, the first water producing main pipe 411 is in socket-joint sealing connection with the water inlet pipe 320 of the water producing branch pipe 310, specifically, the two first water producing branch pipes 412 are in socket-joint assembly with the two adjacent water producing ports 2111 in a pressing manner from top to bottom, and the first water producing main pipe 411 is in socket-joint assembly with the water producing branch pipe 310 in a pressing manner from top to bottom when being installed with the water inlet pipe 320; in order to reasonably collect the filtered water by the water production tee 410, the aperture of the first water production main pipe 411 is larger than that of the first water production branch pipe 412, so that the flow distribution of the filtered water is reasonable when the filtered water is collected by the water production tee; the aeration three-way pipe comprises a first aeration main pipe and two first aeration branch pipes, the specific structure of the aeration three-way pipe is similar to that of the water production three-way pipe 410, and the structure of the aeration three-way pipe is convenient for the aeration three-way pipe to split compressed gas.

The first membrane element 210 and the end membrane element 210 in each membrane element group 200 are respectively provided with a water outlet 2111 or an aeration inlet 2112 which cannot be matched, and when the water outlet 2111 and the aeration tee are correspondingly communicated with the water outlet branch pipe 310 and the air inlet branch pipe 510 through the corresponding water outlet tee 410 and the aeration tee, leakage is prevented by plugging one of the first water outlet branch pipes 412 of the water outlet tee 410 or one of the first aeration branch pipes of the aeration tee through plugs.

In order to facilitate maintenance of the pipeline of the immersed membrane filtration device 10, the top of the frame 100 is further provided with a lifting lug 900, the lifting lug 900 is convenient for lifting and carrying the immersed membrane filtration device 10, it is to be noted that the first pipeline 610, the second pipeline 620, the third pipeline 630, the water-producing branch pipe 310 and the air inlet branch pipe 510 are all arranged at the upper end of the frame 100, that is, the pipeline of the immersed membrane filtration device 10 is arranged at the top of the frame 100, and when the pipeline fails and needs maintenance, the liquid level is only required to be reduced to be exposed out of the pipeline at the top of the immersed membrane filtration device 10, so that the maintenance of the pipeline is facilitated.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. The utility model provides an immersion type membrane filtration device which characterized in that, immersion type membrane filtration device includes frame, at least one membrane element group, water production pipeline and connection nest of tubes, wherein:

the membrane element group comprises a plurality of membrane elements distributed along a first direction and is arranged in the frame, the upper end of each membrane element is provided with a water producing port, and the water producing ports are used for producing filtered water filtered by the membrane elements;

the water production pipeline comprises at least one water production branch pipe, and the water production branch pipe is arranged on the frame;

the connecting pipe group comprises a water production three-way pipe, the water production three-way pipe is respectively communicated with two adjacent water production ports and one water production branch pipe, and the water production three-way pipe is used for collecting and conveying filtered water to the water production branch pipe.

2. The submerged membrane filtration apparatus of claim 1, further comprising an aeration line, wherein the connecting tube set further comprises an aeration tee, wherein:

the aeration pipeline comprises at least one air inlet branch pipe, and the air inlet branch pipe is arranged on the frame;

the upper end of each membrane element is also provided with an aeration air inlet which is spaced from the water producing port and is used for inputting first gas for cleaning the membrane elements;

two aeration air inlets of two adjacent membrane elements along the first direction are adjacently arranged; and/or, the water producing ports in two adjacent membrane elements are adjacently arranged along the first direction;

the aeration three-way pipe is respectively communicated with two adjacent aeration air inlets and one air inlet branch pipe and is used for shunting and conveying the first gas in the air inlet branch pipe to the aeration air inlets.

3. A submerged membrane filtration apparatus according to claim 2, wherein at least one water inlet pipe is provided on the water-producing branch pipe, the water-producing three-way pipe is respectively communicated with two adjacent water-producing ports and one water inlet pipe, at least one air supply pipe is provided on the air inlet branch pipe, and the aeration three-way pipe is respectively communicated with two adjacent aeration air inlets and one air supply pipe.

4. A submerged membrane filtration device according to claim 3, wherein the number of the membrane element groups is plural, the plural membrane element groups are arranged along a second direction, the second direction is perpendicular to the first direction, the water inlet pipes are arranged on the water producing branch pipes in a distributed manner along the second direction, the water producing ports on the membrane elements arranged along the second direction are in one-to-one correspondence with the water inlet pipes on the same water producing branch pipe, the air inlet branch pipes are provided with the plural air supply pipes distributed along the second direction, and the aeration air inlets on the membrane elements arranged along the second direction are in one-to-one correspondence with the air supply pipes on the same air inlet branch pipe.

5. A submerged membrane filtration apparatus according to claim 2, further comprising a connecting pipe comprising a first pipe and a second pipe, the first pipe and the second pipe being disposed in the frame at intervals, the water producing branch pipe and the air intake branch pipe being both mounted between the first pipe and the second pipe and connected with the first pipe and the second pipe.

6. A submerged membrane filtration apparatus according to claim 5, wherein the first pipe is a main pipe for producing water, one end of the branch pipe for producing water is connected to the first pipe, the other end of the branch pipe for producing water is fixed to the second pipe and is not connected to the second pipe, and the main pipe for producing water is used for collecting the filtered water in the branch pipe for producing water.

7. A submerged membrane filtration apparatus according to claim 5, wherein the second conduit is an inlet main conduit, one end of the inlet manifold is in communication with the second conduit, the other end of the inlet manifold is secured to and not in communication with the first conduit, and the inlet main conduit is adapted to transfer the first gas to the inlet manifold.

8. A submerged membrane filtration apparatus according to claim 5, wherein the first pipe and the second pipe are main pipes for producing water, one end of the branch pipe for producing water is communicated with the first pipe, the other end of the branch pipe for producing water is communicated with the second pipe, and both ends of the intake branch pipe are respectively and correspondingly fixed to the first pipe and the second pipe and are not communicated with the first pipe and the second pipe.

9. A submerged membrane filtration apparatus according to claim 5, wherein the connecting pipe further comprises a third pipe, the third pipe being fixed to the frame in a direction parallel to the first direction, the third pipe being an intake main pipe located above the intake manifold, the third pipe being in communication with the intake manifold.

10. The submerged membrane filtration apparatus of claim 1, wherein the water-producing tee comprises a first water-producing main pipe and two first water-producing branch pipes, the two first water-producing branch pipes being disposed at intervals on the pipe wall of the first water-producing main pipe and in communication with the first water-producing main pipe.