CN215161330U

CN215161330U - Hollow fiber membrane bioreactor

Info

Publication number: CN215161330U
Application number: CN202121421197.8U
Authority: CN
Inventors: 伍运佶
Original assignee: Zhejiang Yuanmei Environment Technology Corp ltd
Current assignee: Zhejiang Yuanmei Environment Technology Corp ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2021-12-14
Anticipated expiration: 2031-06-24

Abstract

The utility model discloses a hollow fiber membrane bioreactor, which comprises a water tank; the membrane assembly is arranged in the water tank and comprises a hollow cylinder and end heads arranged at two ends of the cylinder, a plurality of water inlets are formed in the side wall of the cylinder, and a water outlet is formed in the end head; hollow fiber membrane combination, two hollow fiber membrane combination set up respectively in two ends, hollow fiber membrane combination include a plurality of hollow fiber membrane monomers and connector, hollow fiber membrane monomer one end and connector intercommunication and the other end be the free end of dissociating in the barrel, connector and delivery port intercommunication, the end at both ends all is equipped with hollow fiber membrane monomer, can follow two directions and filter, can significantly reduce the accumulational problem of mud rising.

Description

Hollow fiber membrane bioreactor

Technical Field

The utility model relates to the technical field of sewage and wastewater treatment, in particular to a hollow fiber membrane bioreactor.

Background

Most of the existing hollow fiber membrane bioreactors have the following structure, including a hollow fiber membrane module and a rigid frame, wherein the upper end and the lower end of the hollow fiber membrane module are fixed on the rigid frame, liquid in the hollow fiber membrane module is sucked by the water collecting pipe at the upper end under negative pressure, and a plurality of combined modules are inserted into the guide groove frame and are connected by a main water outlet pipe and a main aeration pipe to form a membrane bioreactor equipment unit.

However, the negative pressure absorption of the water collecting pipe at the upper end causes the sludge to rise in the operation process, and the rising sludge accumulates at the upper end of the rigid frame and the root of the fiber membrane module, so that the service life of the hollow fiber membrane module is influenced, and the working efficiency of the hollow fiber membrane module is difficult to ensure.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem in the correlation technique to a certain extent at least: the hollow fiber membrane bioreactor is provided, so that the sludge accumulation of the rising sludge at the upper end of the rigid frame and the root of the fiber membrane component is avoided, and the operation efficiency is improved.

Therefore, an object of the present invention is to provide a hollow fiber membrane bioreactor, which comprises:

a water tank;

the membrane assembly is arranged in the water tank and comprises a hollow cylinder and end heads arranged at two ends of the cylinder, a plurality of water inlets are formed in the side wall of the cylinder, and a water outlet is formed in the end head;

the hollow fiber membrane assembly comprises a plurality of hollow fiber membrane monomers and a connector, wherein one end of each hollow fiber membrane monomer is communicated with the connector, the other end of each hollow fiber membrane monomer is a free end which is dissociated in the cylinder, and the connector is communicated with the water outlet.

According to an example of the present invention, the free end of the hollow fiber membrane monomer is closed.

According to the utility model discloses an example, connector sealing connection in the end and with the end inner space divide into filter chamber and water collecting cavity, delivery port and water collecting cavity intercommunication.

According to an example of the utility model, still include the aeration pipe of setting in the filter chamber, the end lateral part be equipped with the air inlet with aeration pipe intercommunication.

According to an example of the utility model, the aeration pipe is cross and tiling in filtering the intracavity, aeration pipe upper portion be equipped with a plurality of aeration openings.

According to the utility model discloses an example, the aeration pipe includes the person in charge that diminishes along airflow direction pipe diameter gradually, the person in charge outside extend have a plurality of accessory pipes that diminish along airflow direction pipe diameter gradually, person in charge and accessory pipe on all be equipped with a plurality of aeration openings.

According to the utility model discloses an example, the delivery port be connected with the suction subassembly, the suction subassembly include the collector pipe and set gradually first manometer, first control valve and suction pump on the collector pipe.

According to the utility model discloses an example, the air inlet be connected with the subassembly that admits air, the subassembly that admits air include the intake pipe and set gradually second control valve, second accuse manometer and air compressor in the intake pipe.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

The technical scheme has the following advantages or beneficial effects: firstly, the hollow fiber membrane monomers are arranged at the ends of the two ends, so that the filtering can be carried out from two directions, the problem of sludge rising and accumulation can be greatly reduced, most of the hollow fiber membrane monomers are dissociated in the cylinder body, the swinging of the hollow fiber membrane monomers can be enhanced, the membrane pollution can be effectively slowed down, and the membrane cleaning period can be prolonged; in addition, due to the existence of the cylinder, chemical agents can be stored in the membrane assembly during chemical backwashing, so that the dosage of the chemical agents is reduced, and the chemical agents are not easy to diffuse out; and effectively avoid the mechanical damage of the membrane silk.

Drawings

FIG. 1 is a schematic structural view of a hollow fiber membrane bioreactor of the present invention.

Fig. 2 is a schematic view of a partial internal structure of the membrane module of the present invention.

Fig. 3 is a schematic structural diagram of the air intake assembly according to the present invention.

Fig. 4 is a schematic structural diagram of the air intake assembly of the present invention.

Wherein, 1, a water tank; 2. a membrane module; 21. a barrel; 22. a tip; 23. a water inlet; 24. a water outlet; 25. a filter chamber; 26. a water collection cavity; 27. an air inlet; 3. combining hollow fiber membranes; 31. a hollow fiber membrane monomer; 32. a linker; 4. an aeration pipe; 41. a main pipe; 42. a secondary pipe; 43. an aeration opening; 5. a suction assembly; 51. a water collection pipe; 52. a first pressure gauge; 53. a first control valve; 54. a suction pump; 6. a suction assembly; 61. an air inlet pipe; 62. a second control valve; 63. a second pressure control gauge; 64. an air compressor.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

A hollow fiber membrane bioreactor according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

The first embodiment is as follows:

as shown in FIG. 1, the hollow fiber membrane bioreactor comprises: the membrane component 2 is arranged in the water tank 1, the membrane component 2 comprises a hollow cylinder 21 and end heads 22 arranged at two ends of the cylinder 21, a plurality of water inlets 23 are formed in the side wall of the cylinder 21, and a water outlet 24 is formed in the end head 22; the hollow fiber membrane assembly 3 comprises a plurality of hollow fiber membrane monomers 31 and a connector 32, one end of each hollow fiber membrane monomer 31 is communicated with the connector 32, the other end of each hollow fiber membrane monomer 31 is a free end which is dissociated in the cylinder 21, the connector 32 is communicated with the water outlet 24, the hollow fiber membrane monomers 31 are arranged at the ends 22 at the two ends, filtering can be carried out from two directions, the problem of sludge rising and accumulation can be greatly reduced, most of the hollow fiber membrane monomers 31 are dissociated in the cylinder 21, the swinging of the hollow fiber membrane monomers 31 can be enhanced, the pollution of the membrane assembly 2 can be effectively relieved, and the cleaning period of the membrane assembly 2 can be prolonged; in addition, due to the existence of the cylinder 21, chemical agents can be stored in the membrane component 2 during chemical backwashing, so that the dosage of the chemical agents is reduced, and the chemical agents are not easy to diffuse; and effectively avoid the mechanical damage of the hollow fiber membrane monomer 31. The free end of the hollow fiber membrane single body 31 is closed, so that the sludge adhesion can be effectively reduced, and the hollow fiber membrane single body 31 can swing more fully.

The water outlet 24 is connected with a suction assembly 65, the suction assembly 65 comprises a water collecting pipe 51, a first pressure gauge 52, a first control valve 53 and a suction pump 54 which are sequentially arranged on the water collecting pipe 51, under the suction action of the suction pump 54, the first control valve 53 is opened, the hollow fiber membrane assembly 3 is controlled to operate under the operation pressure of 0.008-0.03 MPa, raw water permeates into the hollow fiber membrane monomer 31, filtered substances are fully filtered, and filtered clear liquid flows along the inside of the hollow fiber membrane monomer 31 and flows out from the water outlets 24 at two ends.

End 22 lateral part be equipped with air inlet 27, air inlet 27 be connected with the subassembly that admits air, the subassembly that admits air include intake pipe 61 and set gradually second control valve 62, second accuse manometer 63 and air compressor 64 on intake pipe 61, from air inlet 27 drum compressed air, compressed air forms the multi-beam air current, carry out abundant air oscillation and bubble to the outer wall of the numerous hollow fiber membrane monomer 31 of number and scrub, through combining gas-liquid kinetic energy, can better make hollow fiber membrane monomer 31 vibrate, slow down the emergence of membrane pollution effectively, extension membrane cleaning cycle.

Example two:

the basic structure is the same as the first embodiment, except that: as shown in fig. 2 and 3, the connecting body 32 is hermetically connected in the head 22 and divides the space in the head 22 into a filtering chamber 25 and a water collecting chamber 26, and the water outlet 24 is communicated with the water collecting chamber 26. The end head 22 has a simple and reliable structure, can well ensure the size of the inner space, and can enable the water collecting cavity 26 to be communicated with the water outlet 24 without additional pipelines.

And the aerator pipe 4 is arranged in the filter cavity 25, and the side part of the end head 22 is provided with an air inlet 27 communicated with the aerator pipe 4. Aeration pipe 4 is the cross form and tiling in filter chamber 25, aeration pipe 4 upper portion be equipped with a plurality of aeration mouths 43, through setting up the better messenger gas-liquid kinetic energy combination of aeration pipe 4 ability, can great degree change kinetic energy into the mechanical energy of hollow fiber membrane monomer 31 vibration, slow down the emergence of membrane pollution effectively, prolong membrane cleaning cycle.

Example three:

the basic structure is the same as the embodiment, and the difference is that: as shown in fig. 3, the aeration pipe 4 includes the main pipe 41 that diminishes along airflow direction pipe diameter gradually, the main pipe 41 outwards extend and have a plurality of auxiliary pipes 42 that diminish along airflow direction pipe diameter gradually, main pipe 41 and auxiliary pipe 42 on all be equipped with a plurality of exposure ports 43, make aeration pipe 4 can more abundant fill filter chamber 25 space, aeration pipe 4 sets up and can be more three-dimensional, and can more even setting, and the pipe diameter all makes and diminishes along airflow direction pipe diameter gradually, each exposure port 43 blowout air pressure of better balance of ability, make the better combination of messenger's gas-liquid kinetic energy, can be fine change kinetic energy into the mechanical energy of hollow fiber membrane monomer 31 vibration, slow down the emergence of membrane pollution effectively, extension membrane cleaning cycle.

It should be noted that, in the description of the present invention, it is to be understood that the 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. indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

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

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. 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.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Various alterations and modifications will no doubt become apparent to those skilled in the art after having read the above description. It is therefore intended that the appended claims be interpreted as covering all alterations and modifications as fall within the true spirit and scope of the invention. Any and all equivalent ranges and contents within the scope of the claims should be considered to be within the intent and scope of the present invention.

Claims

1. A hollow fiber membrane bioreactor, comprising:

a water tank (1);

the membrane component (2) is arranged in the water tank (1), the membrane component (2) comprises a hollow cylinder (21) and end heads (22) arranged at two ends of the cylinder (21), a plurality of water inlets (23) are formed in the side wall of the cylinder (21), and a water outlet (24) is formed in each end head (22);

the hollow fiber membrane comprises hollow fiber membrane assemblies (3), wherein the hollow fiber membrane assemblies (3) are respectively arranged in two ends (22), each hollow fiber membrane assembly (3) comprises a plurality of hollow fiber membrane monomers (31) and a connector (32), one end of each hollow fiber membrane monomer (31) is communicated with the connector (32), the other end of each hollow fiber membrane monomer is a free end which is free in a cylinder body (21), and the connector (32) is communicated with a water outlet (24).

2. The hollow fiber membrane bioreactor of claim 1, wherein: the free end of the hollow fiber membrane monomer (31) is closed.

3. The hollow fiber membrane bioreactor of claim 1, wherein: the connecting body (32) is connected in the end head (22) in a sealing mode and divides the space in the end head (22) into a filtering cavity (25) and a water collecting cavity (26), and the water outlet (24) is communicated with the water collecting cavity (26).

4. The hollow fiber membrane bioreactor of claim 3, wherein: the filter also comprises an aeration pipe (4) arranged in the filter cavity (25), and the side part of the end head (22) is provided with an air inlet (27) communicated with the aeration pipe (4).

5. The hollow fiber membrane bioreactor of claim 4, wherein: the aeration pipe (4) is in a cross shape and is flatly laid in the filter cavity (25), and a plurality of aeration openings (43) are arranged at the upper part of the aeration pipe (4).

6. The hollow fiber membrane bioreactor of claim 4, wherein: aeration pipe (4) are including being responsible for (41) that diminish along airflow direction pipe diameter gradually, be responsible for (41) outwards extend and have a plurality of accessory pipes (42) that diminish along airflow direction pipe diameter gradually, be responsible for (41) and accessory pipe (42) on all be equipped with a plurality of aeration mouths (43).

7. The hollow fiber membrane bioreactor of claim 1, wherein: the water outlet (24) is connected with a suction assembly (5), and the suction assembly (5) comprises a water collecting pipe (51), and a first pressure gauge (52), a first control valve (53) and a suction pump (54) which are sequentially arranged on the water collecting pipe (51).

8. The hollow fiber membrane bioreactor of claim 4, wherein: air inlet (27) be connected with air intake assembly (6), air intake assembly (6) include intake pipe (61) and set gradually second control valve (62), second accuse manometer (63) and air compressor (64) on intake pipe (61).