CN214844663U - MBR membrane testing arrangement - Google Patents

Abstract

The utility model provides an MBR membrane testing device, which comprises an MBR membrane assembly, wherein the MBR membrane assembly comprises an MBR membrane frame, and an MBR membrane to be tested is suitable to be fixed on the MBR membrane frame; the first vessel has a water inlet and is adapted to contain the MBR membrane modules; the second container is provided with a water outlet; one end of the water outlet pipe is communicated with the water outlet of the MBR membrane assembly, and the other end of the water outlet pipe is communicated with the second container; one end of the water inlet pipe is communicated with the second container, and the other end of the water inlet pipe is communicated with the water outlet; the first pump is arranged on the water outlet pipe, and the second pump is arranged on the water inlet pipe; the first valve is arranged on a water outlet pipe between the water outlet and the first pump, and the second valve is arranged on a water inlet pipe between the second pump and the water outlet; the sensors are respectively arranged on the water outlet pipe and the water inlet pipe. The utility model has the advantages of small volume, good test effect and the like.

Description

MBR membrane testing arrangement

Technical Field

The utility model relates to a water treatment, in particular to MBR membrane testing arrangement.

Background

In the field of sewage treatment, MBR (Membrane bioreactor) is a novel water treatment technology combining a Membrane separation unit and a biological treatment unit. The MBR project in the first municipal sewage field of China is put into operation in 2006 and 6 months, and then the quantity of MBR sewage treatment projects which are put into operation successively in China is gradually increased in world share. In 2019, the market scale of the Chinese MBR membrane reaches 51.43 million yuan.

MBR membrane is as important part in sewage treatment system now, and the main factor that influences the sewage treatment effect has:

1. quality issues of the MBR membrane itself;

2. stability of MBR membranes operating under different contaminant conditions.

For the quality problem of the MBR membrane, mature detection equipment is used for detecting the properties of the membrane such as flux, oxidation resistance, tensile strength and the like, and for the operation parameters of the MBR membrane under different pollutant conditions, the detection mode in the market at present generally comprises the steps of detecting the water production flow, the water production pressure, the aeration quantity, the backwashing flow and the backwashing pressure of the MBR membrane one by one, the equipment quantity is large, the process is complex, certain trouble is caused in the laboratory detection stage and the comparison test stage of the MBR membrane, and no mature complete set of tools are used for detecting.

SUMMERY OF THE UTILITY MODEL

For solving not enough among the above-mentioned prior art scheme, the utility model provides a MBR membrane testing arrangement small, test effect is good.

The utility model aims at realizing through the following technical scheme:

MBR membrane testing arrangement, MBR membrane testing arrangement includes:

an MBR membrane module, the MBR membrane module comprising an MBR membrane frame, the MBR membrane to be tested being adapted to be secured on the MBR membrane frame;

a first vessel and a second vessel, the first vessel having a water inlet and being adapted to contain the MBR membrane modules; the second container has a drain opening;

one end of the water outlet pipe is communicated with a water outlet of the MBR membrane assembly, and the other end of the water outlet pipe is communicated with a second container; one end of the water inlet pipe is communicated with the second container, and the other end of the water inlet pipe is communicated with the water outlet;

the first pump is arranged on the water outlet pipe, and the second pump is arranged on the water inlet pipe;

the first valve is arranged on a water outlet pipe between the water outlet and the first pump, and the second valve is arranged on a water inlet pipe between the second pump and the water outlet;

and the sensors are respectively arranged on the water outlet pipe and the water inlet pipe.

Compared with the prior art, the utility model discloses the beneficial effect who has does:

1. the volume is small;

the whole set of MBR membrane sewage treatment system is optimized, and the system is designed in a miniaturized and integrated manner to form a set of testing device, and the integrated MBR membrane sewage treatment system adopts an integrated structure, is small in size and is convenient to transport;

2. the test effect is good;

the method has the advantages that the parameters under the real operation condition of the MBR membrane can be detected before the operation performance of the plurality of groups of MBR membranes is uncertain or the MBR membrane modules are put into actual operation, so that the actual operation parameters of the plurality of groups of MBR membranes are determined, the parameters are counted and collected, basis and guarantee are provided for later-stage actual operation, and the operation life of the MBR membrane is prolonged;

the inventive MBR membrane testing device provides a brand-new choice for MBR membrane operation parameter detection.

Drawings

The disclosure of the present invention will become more readily understood with reference to the accompanying drawings. As is readily understood by those skilled in the art: these drawings are only intended to illustrate the technical solution of the present invention and are not intended to limit the scope of the present invention. In the figure:

fig. 1 is a schematic structural diagram of an MBR membrane test device according to embodiment 1 of the present invention.

Detailed Description

Fig. 1 and the following description depict alternative embodiments of the invention to teach those skilled in the art how to make and reproduce the invention. For the purpose of teaching the present invention, some conventional aspects have been simplified or omitted. Those skilled in the art will appreciate variations or substitutions from these embodiments that will be within the scope of the invention. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the invention. Accordingly, the present invention is not limited to the following alternative embodiments, but is only limited by the claims and their equivalents.

Example 1:

fig. 1 schematically shows a simplified structure of an MBR membrane testing device according to an embodiment of the present invention, and as shown in fig. 1, the MBR membrane testing device includes:

an MBR membrane module 1, wherein the MBR membrane module 1 comprises an MBR membrane frame, and an MBR membrane to be tested is suitable to be fixed on the MBR membrane frame;

a first vessel 22 and a second vessel 3, the first vessel 22 having a water inlet 20 and being adapted to contain the MBR membrane modules 1; the second container 3 has a drain opening 19;

one end of the water outlet pipe 11 is communicated with a water outlet of the MBR membrane module 1, and the other end of the water outlet pipe 11 is communicated with the second container 3; one end of the water inlet pipe 15 is communicated with the second container 3, and the other end of the water inlet pipe is communicated with the water outlet;

the water pump comprises a first pump 12 and a second pump 13, wherein the first pump 12 is arranged on the water outlet pipe 11, and the second pump 13 is arranged on the water inlet pipe 15;

a first valve 18 and a second valve 28, said first valve 18 being arranged on the outlet pipe 11 between said water outlet and the first pump 12, said second valve 28 being arranged on the inlet pipe 15 between said second pump 13 and the water outlet;

and the sensors are respectively arranged on the water outlet pipe and the water inlet pipe.

In order to exclude the influence of water in other pipes to obtain accurate parameters, further, sensors (such as a pressure sensor 16 or a flow sensor 17) are provided on the outlet pipe between the first valve 18 and the first pump 12 and on the inlet pipe between the second valve 28 and the second pump 13.

In order to backwash the membrane module using the clean water zone in the second vessel, further, the position of the communication point of the water inlet pipe 15 and the second vessel 3 is lower than the position of the water discharge port 19.

In order to reduce the structural complexity, the other end of the inlet pipe 15 is further communicated with the outlet pipe 11 between the outlet and the first valve 18.

In order to realize linkage among each pump, further, the MBR membrane testing device further includes:

a liquid level gauge disposed within the first container.

In order to improve the water treatment effect, further, the MBR membrane testing apparatus further includes:

a third pump 10 and a gas pipeline 9, wherein one end of the gas pipeline 9 is communicated with the third pump 10, and the other end is communicated with an aerator 8;

and an aerator 8, wherein the aerator 8 is arranged in the first container 22 and is positioned at the lower side of the MBR membrane module 1.

Example 2:

according to the utility model discloses MBR membrane testing arrangement's application example.

In this application example, as shown in fig. 1, sewage is delivered to the water inlet 20 by the fourth pump; the sensors comprise a pressure sensor 16 and a flow sensor 17, the pressure sensor 16 being arranged on the outlet pipe 11 between the first valve 18 and the first pump 12 and on the inlet pipe 15 between the second valve 28 and the second pump 13; flow sensors 17 are arranged on the outlet pipe 11 between the first pump 12 and the second container 3, and on the inlet pipe 15 between the second valve 28 and the second rod 13; one end of the water inlet pipe 15 is communicated with the water outlet pipe 11 between the water outlet of the membrane module 1 and the first valve 18; the third pump 10 is sequentially communicated with a gas pipeline 9 and an aerator 8, and the aerator 8 is arranged at the lower side of the membrane module 1; a third valve 38 and a pressure sensor 16 are provided on the gas conduit; the position of the water outlet 19 on the second container 3 is higher than the position of the communication part between the water inlet pipe 15 and the second container 3; a liquid level gauge (not shown) is disposed within the first container 22.

The working mode of the MBR membrane testing device of this embodiment is:

sewage or clean water with different concentrations flows into the first container 22 from the water inlet 20 through the fourth pump, after the MBR membrane module 1 in the tank is immersed, the third pump 10 is adopted to aerate the first container 22, then the first pump 12 is started to pump (at the moment, the second pump 13 and the second valve 28 are closed), the effluent water of the MBR membrane is pumped to the second container 3 through the first pump 12 for temporary storage and then discharged, the working time of the first pump 12 is 8 minutes, the operation is stopped for 2 minutes, and the circulation operation is performed; in the 4 th period when the first pump 12 stops, the backwashing pump is turned on after 10S, the operation is stopped after 60S, when the second pump 13 is turned on, the first pump 12 and the first valve 18 are closed, the second valve 28 is opened, the second pump 13 pumps water from the second container 3, and the membrane is backwashed; a liquid level meter is arranged in the first container 22 and is linked with the first pump 12 and the fourth pump to divide a high liquid level, a middle liquid level and a low liquid level, the high liquid level is 300mm below the top of the first container, the low liquid level is 300mm above an MBR membrane frame, the middle liquid level is between the high liquid level and the low liquid level, when the liquid level in the first container 22 is in the low liquid level, the first pump 12 stops running, when the liquid level is in the high liquid level, the fourth pump stops running, and when the liquid level is in the middle liquid level after the shutdown, the first pump 12 and the fourth pump are started; data collection statistics are carried out on the pressure of the first pump 12, the pressure of the second pump 13, the flow rate of the first pump 12 (through the flow sensor 17), the flow rate of the second pump 13 (through the flow sensor 17) and the running time, and the data are displayed on a display control screen.

Claims (7)

1. An MBR membrane testing device, wherein the MBR membrane testing device comprises:

   an MBR membrane module, the MBR membrane module comprising an MBR membrane frame, the MBR membrane to be tested being adapted to be secured on the MBR membrane frame;

   a first vessel and a second vessel, the first vessel having a water inlet and being adapted to contain the MBR membrane modules; the second container has a drain opening;

   one end of the water outlet pipe is communicated with a water outlet of the MBR membrane assembly, and the other end of the water outlet pipe is communicated with a second container; one end of the water inlet pipe is communicated with the second container, and the other end of the water inlet pipe is communicated with the water outlet;

   the first pump is arranged on the water outlet pipe, and the second pump is arranged on the water inlet pipe;

   the first valve is arranged on a water outlet pipe between the water outlet and the first pump, and the second valve is arranged on a water inlet pipe between the second pump and the water outlet;

   and the sensors are respectively arranged on the water outlet pipe and the water inlet pipe.
2. 2. The MBR membrane testing device according to claim 1, wherein the sensors are provided on an outlet pipe between the first valve and the first pump, and on an inlet pipe between the second valve and the second pump.
3. 3. The MBR membrane testing device according to claim 1 or 2, wherein the sensor comprises a pressure sensor or a flow sensor.
4. 4. The MBR membrane testing device of claim 1, wherein the communication point of the water inlet pipe and the second container is positioned lower than the water outlet.
5. 5. The MBR membrane testing device of claim 1, wherein the other end of the water inlet pipe is communicated with a water outlet pipe between the water outlet and the first valve.
6. 6. The MBR membrane test device of claim 1, further comprising:

   a liquid level gauge disposed within the first container.
7. 7. The MBR membrane test device of claim 1, further comprising:

   the aerator comprises a third pump and a gas pipeline, wherein one end of the gas pipeline is communicated with the third pump, and the other end of the gas pipeline is communicated with the aerator;

   an aerator disposed within the first vessel and on a lower side of the MBR membrane module.

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