CN217126993U

CN217126993U - Ultrafiltration membrane module and filtration device

Info

Publication number: CN217126993U
Application number: CN202220416973.3U
Authority: CN
Inventors: 尚高峰; 赵从伟; 王巍; 王朝晖; 马兴瑞; 秋小波
Original assignee: Zhangjiakou Shenzhou Starch Technology Co ltd
Current assignee: Zhangjiakou Shenzhou Starch Technology Co ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-08-05
Anticipated expiration: 2032-02-28

Abstract

The embodiment of the utility model provides a relate to waste water treatment technical field, especially relate to an milipore filter subassembly and filter equipment. The ultrafiltration membrane component comprises a membrane shell, a first blocking part, a second blocking part, a plurality of membrane wires and a water suction pump. Wherein, a cavity is arranged in the membrane shell; the first blocking part is provided with a water outlet channel, an air inlet channel and an air outlet, the air inlet is arranged on the surface of the first blocking part, which is far away from the cavity, the air outlet is arranged on the surface of the first blocking part, which faces the cavity, and the second blocking part is provided with a water inlet and a sewage outlet; the membrane wires are accommodated in the accommodating cavity, one ends of the membrane wires are installed on the first plugging portion, a water inlet channel is arranged in each membrane wire along the axis direction of the membrane wire, and the water inlet channel is communicated with the water outlet channel; the water pump is externally connected with the water outlet channel. That is, the ultrafiltration membrane component solves the problem that pollutants are deposited at two ends of a shell of an ultrafiltration membrane filtration unit.

Description

Ultrafiltration membrane module and filtration device

Technical Field

The embodiment of the utility model provides a relate to waste water treatment technical field, especially relate to an ultrafiltration membrane subassembly and filtration equipment.

Background

MBR, also known as Membrane bioreactor (Membrane Bio-Reactor), is a treatment process combining earphone treatment (biochemical treatment) and three-stage treatment (filtration treatment), and can effectively retain various suspended solid particles, microorganisms and other impurities. According to the structure of the membrane, the membrane can be divided into a flat membrane, a tubular membrane, a hollow fiber membrane and the like, and according to the membrane aperture, the membrane can be divided into a microfiltration membrane, an ultrafiltration membrane, a nanofiltration membrane, a reverse osmosis membrane and the like.

In the production process of starch, wastewater containing a large amount of suspended substances is generated, a large amount of suspended substances exist, and the suspended substances with high content are not beneficial to the treatment of a subsequent biochemical system, so that the wastewater is treated by introducing an MBR process. At present, an ultrafiltration membrane filtering unit used by MBR adopts a mode of fixing membrane wires at two ends and aerating below a component, the mode often causes the phenomenon that pollutants are deposited at the two ends, and the direct adverse effect is that the filtering effect of the component is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: provides an ultrafiltration membrane component to solve the problem that pollutant deposits appear at two ends of a shell of an ultrafiltration membrane filtration unit.

The ultrafiltration membrane component comprises a membrane shell, a first blocking part, a second blocking part, a plurality of membrane wires and a water suction pump. Wherein, a cavity is arranged in the membrane shell; the first blocking part is provided with a water outlet channel, the first blocking part is also provided with an air inlet, an air inlet channel and an air outlet, the air inlet is arranged on the surface of the first blocking part, which is far away from the containing cavity, the air outlet is arranged on the surface of the first blocking part, which faces the containing cavity, and the second blocking part is provided with a water inlet and a sewage outlet; the membrane wires are accommodated in the accommodating cavity, one ends of the membrane wires are installed on the first plugging portion, a water inlet channel is arranged in each membrane wire along the axial direction of the membrane wire, and the water inlet channel is communicated with the water outlet channel; the water pump is externally connected with the water outlet channel.

Optionally, the membrane filament wall portion is provided with a stiffening rib.

Optionally, a protrusion for avoiding the membrane wire is arranged on the surface of the first blocking part facing the cavity, and the air outlet is arranged on the surface of the protrusion.

Optionally, the air inlet is provided on a side wall surface of the first blocking portion.

Optionally, a plurality of membrane filaments are arranged on the surface of the first plugging part at equal intervals.

The utility model also provides a filtration equipment, including the milipore filter subassembly of above arbitrary.

Optionally, the ultrafiltration membrane module is arranged vertically.

Optionally, the filter device further comprises a prefilter connected to said water inlet, said prefilter being for prefiltering of the wastewater.

The embodiment of the utility model provides an ultrafiltration membrane subassembly compares with prior art, has following beneficial effect:

the ultrafiltration membrane component comprises a membrane shell, a first blocking part, a second blocking part, a plurality of membrane wires and a water suction pump. Wherein, a cavity is arranged in the membrane shell; the first blocking part is provided with a water outlet channel, an air inlet channel and an air outlet, the air inlet is arranged on the surface of the first blocking part, which is far away from the cavity, the air outlet is arranged on the surface of the first blocking part, which faces the cavity, and the second blocking part is provided with a water inlet and a sewage outlet; the membrane wires are accommodated in the accommodating cavity, one ends of the membrane wires are installed on the first plugging portion, a water inlet channel is arranged in each membrane wire along the axis direction of the membrane wire, and the water inlet channel is communicated with the water outlet channel; the water pump is externally connected with the water outlet channel.

The waste water to be treated flows into the accommodating cavity from the water inlet of the second plugging portion, air or oxygen is pumped from the air inlet of the first plugging portion, the air or the oxygen is used for reproduction of aerobic bacteria in the waste water, and the aerobic bacteria can phagocytose organic matters in the waste water. And meanwhile, a water suction pump is started and acts on the water outlet channel and the water inlet channel, the water inlet channel is in a negative pressure state, and water flows to the water inlet channel from the outer wall of the membrane wire and flows out of the water outlet channel. Through membrane silk surface filtration, the aquatic suspended solid is stayed the membrane silk outside, and the air inlet is frequently inflated, and the air current promotes the suspended solid and flows out from the drain of first shutoff portion. That is, the ultrafiltration membrane component adopts the design that one end of the membrane wire is fixed and the other end is not fixed, so that the membrane wire swings like seaweed along with the airflow, suspended matters flow out from the top along with the airflow, and the problem that pollutants are deposited at two ends of a shell of an ultrafiltration membrane filtering unit is solved.

Drawings

Fig. 1 is a schematic diagram of an ultrafiltration membrane module and a filtration apparatus according to an embodiment of the present invention.

FIG. 2 is a partial schematic view of an ultrafiltration membrane module.

In the figure, 1, an ultrafiltration membrane component; 10. a membrane shell; 11. a cavity; 20. a first blocking portion; 21. a water outlet channel; 22. an air inlet; 23. an air intake passage; 24. an air outlet; 30. a second sealing part; 31. a water inlet; 32. a sewage draining port; 40. membrane silk; 41. a water inlet channel; 50. a water pump.

2. A filtration device; 60. a preliminary filter; 70. and (4) a valve.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. It will be understood that when an element is referred to as being "secured to" 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 be present. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and the like as used herein are for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Referring to fig. 1 and fig. 2, schematic diagrams of an ultrafiltration membrane module 1 and a filtration apparatus according to an embodiment of the present invention, and a partial schematic diagram of the ultrafiltration membrane module 1 are respectively shown, where the ultrafiltration membrane module 1 includes a membrane shell 10, a first plugging portion 20, a second plugging portion 30, a plurality of membrane filaments 40, and a water pump 50. The membrane shell 10 is a shell of the ultrafiltration membrane module 1, and is cylindrical, and the first blocking part 20 and the second blocking part 30 are buckled at two ends of the membrane shell 10. The membrane wire 40 plays a role in filtration, and a water inlet channel 41 is arranged in the middle of the membrane wire 40, so that water on the outer wall of the membrane wire 40 is sucked by vacuumizing. The suction pump 50 is used to provide a vacuum environment for the water inlet channel 41 of the membrane wire 40. Each of the components will be described separately below.

Regarding the membrane housing 10, a cavity 11 is provided inside thereof, and the cavity 11 is used for accommodating the membrane wires 40, wastewater and the like. The membrane shell 10 is provided with plugs at both ends, the lower plug being referred to as a first plug 20 and the upper plug being referred to as a second plug 30. The first blocking part 20 is provided with a water outlet channel 21, one end of the water outlet channel 21 is communicated with the water inlet channel 41 of the membrane wire 40, and the other end is connected with a water pump 50. When the water pump 50 is turned on, the water inlet channel 41 and the water outlet channel 21 are caused to be in a vacuum state, and the water inlet channel 41 starts to suck water in the cavity 11 through the surface of the membrane wire 40.

In addition, the first blocking part 20 is further provided with an air inlet 22, an air inlet channel 23 and an air outlet 24, the air inlet 22 is arranged on the surface of the first blocking part 20 departing from the cavity 11, and the air outlet 24 is arranged on the surface of the first blocking part 20 facing the cavity 11. Preferably, the surface of the first blocking portion 20 facing the cavity 11 is provided with a protrusion avoiding the membrane wire 40, and the air outlet 24 is provided on the surface of the protrusion. In this embodiment, the air inlet 22 is disposed on a side wall surface of the first blocking portion 20, and in other embodiments, the air inlet 22 may be disposed on any surface of the first blocking portion 20 facing away from the cavity 11. As for the second block section 30, it is provided with a water inlet 31 and a sewage drain 32. Waste water flows into the chamber 11 through the inlet 31 and the drain 32 is adapted to drain suspended matter from the waste water. Preferably, the water inlet 31 and the sewage discharge outlet 32 are both provided on a surface of the second blocking portion 30 facing away from the cavity 11.

The membrane wire 40 is accommodated in the housing 11, one end of the membrane wire 40 is attached to the first closing part 20, the other end is not fixed, and the membrane wire 40 swings like a sea grass. The inside axial direction along membrane silk 40 of membrane silk 40 is equipped with inhalant canal 41, and the surface of membrane silk 40 plays the filtering action, is that can absorb external water under the negative pressure state and get into inhalant canal 41 promptly. In addition, in order to maintain the wall strength of the membrane wire 40, the wall of the membrane wire 40 is provided with a reinforcing rib (not shown) in a fiber shape, so that the overall strength of the membrane wire 40 is maintained. Preferably, a plurality of membrane wires 40 are arranged on the surface of the first blocking portion 20 at equal intervals.

The embodiment of the utility model provides an ultrafiltration membrane subassembly 1's use: the wastewater to be treated flows into the cavity 11 from the water inlet 31 of the second blocking part 30, and air or oxygen is pumped from the air inlet 22 of the first blocking part 20, and the air or oxygen is used for reproduction of aerobic bacteria in the wastewater, and the aerobic bacteria can phagocytose organic matters in the wastewater. Meanwhile, the water pump 50 is started, the water pump 50 acts on the water outlet channel 21 and the water inlet channel 41, the water inlet channel 41 is in a negative pressure state, and water flows to the water inlet channel 41 from the outer wall of the membrane wire 40 and flows out from the water outlet channel 21. Through the filtration of membrane silk 40 surface, the aquatic suspended solid remains in the outside of membrane silk 40, and air inlet 22 frequently inflates, and the air current promotes the suspended solid and flows out from the drain 32 of first shutoff portion 20.

In addition, the utility model discloses still introduce a filtration equipment 2, it includes the parallelly connected milipore filter subassembly 1 of a plurality of, perhaps, the milipore filter subassembly 1 of establishing ties, or the milipore filter subassembly 1 that combines together in series-parallel again. The usage of the parallel ultrafiltration membrane component 1 is equivalent to increasing the volume of the treated wastewater, and the capability of the equipment for treating the wastewater is improved; the series connection of the ultrafiltration membrane module 1 is equivalent to repeatedly filtering the water waste water and repeatedly removing suspended matters, so that the water is cleaner, and therefore the ultrafiltration membrane module 1 can be configured for use in combination with specific conditions.

Preferably, several ultrafiltration membrane modules 1 are vertically installed together, and the gravity of water can reduce the frequency of use of the suction pump 50 or to some extent, save energy. In addition, the filter device 2 comprises a prefilter 60 connected to the water inlet 31, the prefilter 60 being used for prefiltering of waste water, mainly against large suspended matter. In addition, a valve 70 is provided at each connection point of the filter device 2.

In conclusion, the ultrafiltration membrane module 1 adopts the design that one end of the membrane wire 40 is fixed and the other end is not fixed, so that the membrane wire 40 swings like seaweed along with the airflow, suspended matters flow out from the top along with the airflow, and the problem that pollutants are deposited at two ends of a shell of an ultrafiltration membrane filtering unit is solved. Because the filtering device 2 comprises the ultrafiltration membrane component 1, the filtering device 2 can also solve the problem that pollutants are deposited at two ends of the shell of the ultrafiltration membrane filtering unit.

It should be noted that the preferred embodiments of the present invention are described in the specification and the drawings, but the present invention can be realized in many different forms, and is not limited to the embodiments described in the specification, and these embodiments are not provided as additional limitations to the present invention, and are provided for the purpose of making the understanding of the disclosure of the present invention more thorough and complete. Moreover, the above technical features are combined with each other to form various embodiments which are not listed above, and all the embodiments are regarded as the scope of the present invention; further, it will be apparent to those skilled in the art that modifications and variations can be made in the light of the above teachings, and all such modifications and variations are intended to be within the scope of the present invention.

Claims

1. An ultrafiltration membrane module, comprising:

the membrane shell is internally provided with a containing cavity;

the first blocking part is provided with a water outlet channel, and is also provided with an air inlet, an air inlet channel and an air outlet, the air inlet is arranged on the surface of the first blocking part, which is far away from the containing cavity, the air outlet is arranged on the surface of the first blocking part, which faces the containing cavity, and the second blocking part is provided with a water inlet and a sewage outlet;

the membrane wires are accommodated in the accommodating cavity, one ends of the membrane wires are installed on the first plugging part, a water inlet channel is arranged in each membrane wire along the axial direction of the membrane wire, and the water inlet channel is communicated with the water outlet channel;

and the water suction pump is externally connected with the water outlet channel.

2. The ultrafiltration membrane module of claim 1, wherein the membrane filament wall portions are provided with reinforcing ribs.

3. The ultrafiltration membrane assembly of claim 1, wherein the surface of the first blocking portion facing the cavity is provided with a protrusion avoiding the membrane filaments, and the air outlet is formed on the surface of the protrusion.

4. The ultrafiltration membrane module of claim 1, wherein the gas inlet is provided on a sidewall surface of the first shut-off portion.

5. The ultrafiltration membrane module of claim 1, wherein a plurality of said membrane filaments are equally spaced on said first stopper surface.

6. A filtration apparatus, comprising:

a plurality of ultrafiltration membrane modules according to any of claims 1 to 5 arranged in parallel or in series.

7. The filtration apparatus of claim 6, wherein the ultrafiltration membrane module is vertically disposed.

8. A filter device as claimed in claim 6, further comprising a prefilter connected to the water inlet, the prefilter being for prefiltering of wastewater.