CN214167467U

CN214167467U - Dull and stereotyped membrane water treatment facilities of MBR

Info

Publication number: CN214167467U
Application number: CN202022472516.XU
Authority: CN
Inventors: 秦舒浩; 杨园园; 崔振宇; 杨敬葵; 吴述璐
Original assignee: Guizhou Material Industrial Technology Research Institute
Current assignee: Guizhou Material Industrial Technology Research Institute
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-09-10
Anticipated expiration: 2030-10-30

Abstract

The utility model provides an MBR flat membrane water treatment device, which comprises an underframe; the water collecting pipe and the plug are respectively installed at two ends of the top of the underframe, the water collecting pipe and the plug are connected through a plurality of film elements which are connected in sequence, a central hole is machined in the middle of each film element, and the film elements are connected through a connecting sleeve. The utility model connects a plurality of flat membrane elements through the structure of the central hole to form a central water collecting pipe through the tenon-and-mortise structure, so as to obtain a membrane stack, and a plurality of membrane stacks form a membrane assembly; the design of the diversion trench in the membrane element ensures that a plurality of water flowing channels are provided, the filtration resistance is small, the permeable rate of the membrane is uniform, the effective water outlet area of the membrane is increased, and the membrane element has the advantages of stable water outlet quality, no need of frequently cleaning the membrane, prolonged service life of the membrane, low operation and maintenance cost and the like.

Description

Dull and stereotyped membrane water treatment facilities of MBR

Technical Field

The utility model relates to a dull and stereotyped membrane water treatment facilities of MBR.

Background

The Membrane Bioreactor (MBR) process is a water treatment technology combining a biological activated sludge process and a membrane separation technology, and has the advantages of stable effluent quality, small occupied area, easiness in automatic control and the like. The MBR flat sheet membrane has the advantages of strong anti-pollution performance, easy cleaning and the like, and is widely applied. At present, the outer frame of the MBR flat membrane element support plate is mostly rectangular, the surface of the support plate is covered with guide cloth and a filter membrane, the support plate is welded into a closed cavity in an ultrasonic or hot melting mode, and the top end or the side surface of the support plate is provided with one or two water producing ports. The restriction of backup pad shape, it will flow into water conservancy diversion cloth and the water of backup pad runner through the diaphragm through producing the mouth of a river to produce the water suction pump and take out, can lead to being greater than the distal end from the suction of producing the mouth of a river near-end, and the play flux of diaphragm is big than other places, and produces the mouth of a river setting and generally on the top of diaphragm, keeps away from the aeration pipe, consequently produces the diaphragm around the mouth of a river and leads to the membrane pollution serious than other regions because of can not getting better washing.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a dull and stereotyped membrane water treatment facilities of MBR.

The utility model discloses a following technical scheme can realize.

The utility model provides an MBR flat membrane water treatment device, which comprises an underframe; the water collecting pipe and the plug are respectively installed at two ends of the top of the underframe, the water collecting pipe and the plug are connected through a plurality of film elements which are connected in sequence, a central hole is machined in the middle of each film element, and the film elements are connected through a connecting sleeve.

The membrane element (2) comprises a membrane plate, a filter layer is arranged on the surface of the membrane plate, a plurality of guide grooves (23) are machined on the end face of the membrane plate, water collecting holes (22) are machined on the side wall of a central hole of the membrane element (2), and the guide grooves (23) are communicated with the water collecting holes (22).

The diversion trench (23) is a fan-shaped trench.

The filter layer comprises non-woven fabric covered on the membrane plate, and the outer surface of the non-woven fabric is further covered with a filter membrane.

The membrane element comprises a membrane plate, and a layer of non-woven fabric is covered on the surface of the membrane plate. A plurality of guide grooves 23 are processed on the end face of the membrane plate, water collecting holes 22 are processed on the side wall of the central hole of the membrane element 2, and the guide grooves 23 are communicated with the water collecting holes 22. The collected water on the membrane element flows into the water collection holes 22 through the guide grooves, and a channel is formed between the central hole and the water collection pipe. The sewage flows into the diversion trench 23 after being filtered by the non-woven fabric, and the diversion trench

The diversion trench 23 is a fan-shaped trench. The width of the outer end of the diversion trench is larger than that of the inner part of the diversion trench, so that water flow is easier to concentrate.

The membrane element 2 is circular, and the two ends of the central hole of the membrane element 2 are also uniformly processed with assembling lines 21. The assembling lines 21 are pseudo-threaded grooves, so that the center of the membrane element 2 is convenient to install a butt joint device.

The connecting sleeve 7 comprises a connector 71 and a connecting groove 72, the connector 71 and the connecting groove 72 are respectively installed at two ends of a central hole of the membrane element 2, assembling grains 21 are respectively processed on opposite surfaces of the connector 71 and the connecting groove 72, and a plurality of clamping strips 73 are uniformly and fixedly connected to outer walls of the connector 71 and the connecting groove 72. The joint and the connecting groove on the membrane element 2 form a mortise and tenon joint structure when the two membrane elements are connected, and the membrane elements are extruded on the underframe through the extrusion of the plugs.

And the opposite ends of the joint 71 and the joint groove 72 are respectively provided with a butt tenon 74 and a butt mortise 75.

The membrane element 2 is installed on the underframe 1 through an upper frame 4 and a middle frame 5 on the underframe 1, the upper frame 4 is fixedly connected to the top end of the underframe 1 in the direction, the middle frame 5 is fixedly connected to the lower end of the upper frame 4, the width of the middle frame 5 is smaller than that of the upper frame 4, and the width of the upper frame 4 is smaller than the diameter of the membrane element 2.

The water collecting pipe 3 is arranged at one end of the upper frame 4, and the middle hole of the center of the water collecting pipe 3 is communicated with the middle hole of the center of the membrane element 2.

A plurality of MBR flat membrane elements are inserted into a stainless steel frame in a slot mode and fixed, and an aeration device is arranged at the bottom end of the MBR flat membrane elements to form a membrane assembly. Because the slot board and the flat membrane element between the gap, the aeration in-process can appear card mud when the mud inflation and lead to the backup pad to warp, simultaneously, the existence of slot board hinders the diffusion of rivers, and is unfavorable to the washing of flat membrane.

Drawings

Fig. 1 is a schematic view of the vertical structure of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic structural view of a membrane element according to the present invention;

FIG. 4 is a schematic view of the connecting sleeve structure of the present invention;

fig. 5 is a schematic view of the bottom surface structure of the connecting sleeve of the present invention.

Detailed Description

In order to solve the technical problem, the utility model aims at providing a dull and stereotyped membrane backup pad for MBR, structural design is reasonable, and diaphragm effective area utilizes highly, provides one kind simultaneously and uses this backup pad to be the dull and stereotyped membrane element of MBR and subassembly that supports, and membrane element special construction and fixed mode have reduced the pollution of membrane, need not frequent washing, reduce fortune dimension cost.

The membrane element is composed of a diversion trench, a water collecting hole and a clamping groove on the central plate. The central plate is of a circular structure, the middle of the central plate is provided with a through hole, and the central plate is made of a pvc material or a PP material which is not easy to deform, so that the cost is lower than that of an abs material which is commonly used, and the weight is lighter. The circular structure design can avoid the condition of dead zones caused by uneven film water outlet due to water production suction, and ensure the water production maximization; the central plate comprises two surfaces, wherein each surface is provided with a plurality of guide grooves, and the guide grooves are communicated with the water collecting holes of the central plate. The draw-in groove that is equipped with threaded structure around the water collecting hole both can regard as the connection between two flat membrane element, saves the side slot board to flat membrane element's fixed, also provides the passageway for producing water simultaneously, as the outlet pipe, reduces traditional rubber tube and goes out water and bring the scheduling problem that drops.

Based on the supporting plate, the utility model also provides an MBR flat membrane element, which comprises a supporting plate, a flow guide cloth and a filtering membrane, wherein the supporting plate is any one of the supporting plates; the filtering membrane is made of PVDF, PVC, PEFT and other materials, a through hole is arranged in the middle of the flat membrane, and the size of the through hole is consistent with that of the water collecting hole of the supporting plate; the two diaphragms are respectively loaded on two sides of the supporting plate, and are bonded to form a closed cavity capable of containing filtered water in a high-frequency welding mode, and the flow guide is distributed in the cavity; based on the MBR flat membrane element, the utility model also provides an MBR flat membrane component, which comprises the MBR flat membrane element, an aeration pipe and a stainless steel outer frame; a plurality of circular MBR flat membrane pieces are mutually stacked in the front-rear direction through the central fixing mortise, and the mortise around the front and rear water collecting holes of the two membrane pieces can be mutually combined, so that the relative movement of the flat membrane pieces is limited, a gap is also provided between the two membranes, and the aeration cleaning is facilitated. The tenon-and-mortise structure connection forms a water collecting channel, so that the membrane component is more stable, and the membrane component cannot shake due to aeration in the use process. The stainless steel frame is designed according to the shape of the flat membrane element and can just accommodate the flat membrane element. The stainless steel outer frame is made of 304 stainless steel; fixing the water collecting pipe by a u-shaped clamp close to the water collecting pipe; the flat membrane elements are arranged in order in the membrane box, share one water outlet pipe in the same row, and are finally connected to the main water collecting pipe.

The aeration pipe is arranged below the water collecting pipe, one section of the aeration pipe is an air inlet, the other end of the aeration pipe is an air outlet, and an air placing valve is arranged above the water surface exposed from the air outlet.

The working principle of the invention is as follows: a plurality of circular MBR flat membrane elements are stacked each other along the fore-and-aft direction through central fixed pipe, assemble into the membrane module, and central collector pipe is fixed on stainless steel frame, and the aeration pipe of below lasts the aeration, washes dull and stereotyped membrane surface, and the product water pump starts, and sewage collects central water collecting hole through the guiding gutter of filter membrane piece through the guiding gutter of backup pad and is collected. The combination mode between the flat membrane elements replaces the function of the traditional slot plate, and the problems of mud blocking, membrane element shaking deformation and the like are prevented.

The circular flat membrane element has the beneficial effects that the fan-shaped diversion trench structure, the multi-water outlet design and the water collecting channel are integrated, so that the effective water producing area of the membrane is increased; under the action of aeration, the open structure of the membrane component effectively prevents sludge and the like from depositing on the surface of the membrane, the water quality of produced water is more stable, the water outlet of the filtering membrane is uniform, the surface of the filtering membrane does not need to be frequently cleaned, the service life of the MBR flat membrane is prolonged, and the operation and maintenance cost is reduced.

Claims

1. The utility model provides a dull and stereotyped membrane water treatment facilities of MBR, includes chassis (1), its characterized in that: water collecting pipes (3) and plugs (6) are installed respectively at two ends of the top of the bottom frame (1), the water collecting pipes (3) and the plugs (6) are connected through a plurality of membrane elements (2) which are connected in sequence, a central hole is formed in the middle of each membrane element (2), and the membrane elements (2) are connected through connecting sleeves (7).

2. The MBR flat membrane water treatment device of claim 1, wherein: the membrane element (2) comprises a membrane plate, a filter layer is arranged on the surface of the membrane plate, a plurality of guide grooves (23) are machined on the end face of the membrane plate, water collecting holes (22) are machined on the side wall of a central hole of the membrane element (2), and the guide grooves (23) are communicated with the water collecting holes (22).

3. The MBR flat membrane water treatment device of claim 2, wherein: the diversion trench (23) is a fan-shaped trench.

4. The MBR flat membrane water treatment device of claim 2, wherein: the filter layer comprises non-woven fabric covered on the membrane plate, and the outer surface of the non-woven fabric is further covered with a filter membrane.

5. The MBR flat membrane water treatment device of claim 1, wherein: the membrane element (2) is circular, and assembling lines (21) are uniformly processed at two ends of a central hole of the membrane element (2).

6. The MBR flat membrane water treatment device of claim 1, wherein: the connecting sleeve (7) comprises a connector (71) and a connecting groove (72), the connector (71) and the connecting groove (72) are respectively installed at two ends of a center hole of the membrane element (2), assembling grains (21) are processed on opposite surfaces of the connector (71) and the connecting groove (72), and a plurality of clamping strips (73) are uniformly and fixedly connected to outer walls of the connector (71) and the connecting groove (72).

7. The MBR flat membrane water treatment device of claim 6, wherein: and one end of the joint (71) opposite to the joint groove (72) is respectively provided with a butt tenon (74) and a butt mortise (75).

8. The MBR flat membrane water treatment device of claim 1, wherein: the membrane element (2) is installed on the bottom frame (1) through an upper frame (4) and a middle frame (5) on the bottom frame (1), the upper frame (4) is fixedly connected to the top end of the bottom frame (1) in the direction, the middle frame (5) is fixedly connected to the lower end of the upper frame (4), the width of the middle frame (5) is smaller than that of the upper frame (4), and the width of the upper frame (4) is smaller than the diameter of the membrane element (2).

9. The MBR flat membrane water treatment device of claim 1, wherein: the water collecting pipe (3) is arranged at one end of the upper frame (4), and the middle hole in the center of the water collecting pipe (3) is communicated with the middle hole in the center of the membrane element (2).