CN216972192U - Novel ceramic membrane water purification device - Google Patents

Abstract

The application provides a novel ceramic membrane purifier belongs to embrane method water treatment technical field. The device comprises a feeding pump, a ceramic membrane filter, a backwashing water storage tank, a gas storage tank and an air compressor, wherein the water inlet end of the feeding pump is communicated with a raw water inlet pipe to be treated, the water outlet end of the feeding pump is communicated with a first pipeline, a water inlet regulating valve and a backwashing pneumatic valve are arranged on the first pipeline, a chlorination port is formed in the first pipeline, and the water inlet end of the ceramic membrane filter is communicated with the side wall of the first pipeline. The utility model has the advantages of no need of adding medicament at the front end of the process, no secondary pollution, simple process, stable quality of produced water, no influence on the quality of the produced water along with the fluctuation of the water quality of a water source, high equipment integration level, small occupied area, low treatment cost, realization of full-automatic remote monitoring, thin film layer and high film layer strength of the structure, and solves the problems of easy falling of an asymmetric high-pressure backwashing film layer and large backwashing resistance and unobvious effect.

Description

Novel ceramic membrane water purification device

Technical Field

The application relates to the field of membrane method water treatment, in particular to a novel ceramic membrane water purifying device.

Background

In China, surface water is taken as source water, but the surface water is more easily interfered by external factors and becomes micro-polluted source water, with the improvement of the sanitary standard of drinking water and the pursuit of people for high-quality drinking water, a water plant adopting the traditional treatment process (coagulation-precipitation-filtration-disinfection) can not treat micro-polluted raw water into qualified drinking water, the current common practice is to add a deep treatment process such as activated carbon or ozone activated carbon on the basis of the traditional process, but the upgrading of the treatment process causes the prolonging of the process flow, the increasing of the construction cost of structures and the rising of the water production cost, and more importantly, a plurality of medium and small water plants have no reserved construction land and can not carry out upgrading and reconstruction, therefore, the drinking water treatment industry urgently needs an effective novel treatment process, the method replaces the traditional treatment process, or reforms the water plant on the basis of the original process to meet the requirement of a new water quality standard.

In the related technology, the membrane technology can effectively remove pathogenic bacteria, algae, particulate matters and organic matters in drinking water, the application of membrane filtration in drinking water treatment is becoming more and more extensive along with the reduction of membrane preparation cost and the maturity of application technology, compared with the traditional technology, the membrane technology can reduce the use of chemical reagents, reduce sludge, produce high-quality drinking water, shorten process flow and easily realize automatic operation, most of the currently used membranes are organic membranes, although the organic membranes have the advantages of low price, easy installation, high filling density and the like, the mechanical strength and the chemical stability are poor, the problem of filament breakage or breakage is easy to occur, the service life is short, in addition, the chemical reagents are required to be added in the water treatment technology for enhancing coagulation effect, removing algae, heavy metals, odor, trace pollutants and the like, the introduction of the chemical reagents also brings the risk of secondary pollution to water, how to invent a novel ceramic membrane water purifier to improve the problems becomes a problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In order to make up for above not enough, the application provides a novel ceramic membrane purifier, aims at improving the problem that life is shorter, introduction of chemical agent also brings secondary pollution's risk for the water.

The embodiment of the application provides a novel ceramic membrane water purifying device, which comprises a feed pump, a ceramic membrane filter, a back-flushing water storage tank, a gas storage tank and an air compressor, wherein the water inlet end of the feed pump is communicated with a raw water inlet pipe to be treated, the water outlet end of the feed pump is communicated with a first pipeline, the first pipeline is provided with a water inlet regulating valve and a back-flushing pneumatic valve, the first pipeline is provided with a chlorine adding port, the water inlet end of the ceramic membrane filter is communicated with the side wall of the first pipeline, the outlet end of the ceramic membrane filter is communicated with a second pipeline, the first pipeline and the second pipeline are both provided with pressure gauges, the back-flushing water storage tank is communicated with the second pipeline, the side wall of the second pipeline is communicated with a water outlet pipe, the water outlet pipe is provided with a water production regulating valve, the second pipeline is provided with the pneumatic valve, the gas storage tank is communicated with the side wall of the back-flushing water storage tank by a third pipeline, and a first regulating valve is arranged on the third pipeline, a fourth pipeline is communicated between the air storage tank and the air compressor, and a second regulating valve is arranged on the fourth pipeline.

In a specific embodiment, the ceramic membrane filter comprises a water inlet cavity, a membrane element and a membrane module housing, wherein the membrane element is fixedly mounted in the water inlet cavity through the membrane module housing.

In a specific embodiment, the membrane element consists of a number of membrane channels a and a number of membrane channels B, between which membrane channels a and B a membrane layer C is arranged.

The beneficial effect of this application:

1. compared with the traditional drinking water treatment process in the figure 4, the process of the utility model has the advantages of no need of adding chemicals at the front end, no secondary pollution, simple process, stable water quality of produced water, no influence on the water quality of the produced water along with the fluctuation of the water quality of a water source, high equipment integration level, small occupied area, low treatment cost and capability of realizing full-automatic remote monitoring.

2. Compared with the drinking water treatment process of the organic ultrafiltration membrane in the figure 5, the treatment process of the utility model is simple, the membrane has strong pollution resistance, the unit membrane area flux is 5-10 times of that of the organic membrane, the equipment operation energy consumption is lower, and the overall process investment is smaller.

3. Compared with the structure of a supporting layer, a transition layer and a film layer adopted by the traditional asymmetric ceramic film, the symmetric ceramic film prepared by the extrusion process has the advantages of thin film layer and high film layer strength, and solves the problems that the asymmetric high-pressure backwashing film layer is easy to fall off and the large backwashing resistance effect is not obvious.

4. When the device disclosed by the utility model is used for preparing drinking water, the energy consumption for producing one ton of water is less than 0.15 degree of electricity, the turbidity of the produced water is 0.01NTU, and other indexes all reach the drinking water standard.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some examples of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also derive other related drawings based on these drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a filtering apparatus of a novel ceramic membrane water purifying apparatus provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of a ceramic membrane filter of a novel ceramic membrane water purification device provided in an embodiment of the present application;

fig. 3 is a schematic view of an end face structure of a ceramic membrane according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a ceramic membrane filtration principle provided in an embodiment of the present application;

FIG. 5 is a flow chart of a conventional tap water treatment process;

FIG. 6 is a flow chart of a process for treating tap water with an organic ultrafiltration membrane;

FIG. 7 is a flow chart of tap water treatment process according to the present application.

In the figure: 1-a feed pump; 2-a ceramic membrane filter; 3-backwashing the water storage tank; 4-a gas storage tank; 5, an air compressor; 6-raw water to be treated enters a pipe; 7-water inlet regulating valve; 8-backwashing a pneumatic valve; 9-a chlorine adding port; 10-pressure gauge; 11-water production regulating valve; 12-recoil pneumatic valves; 13-a first regulating valve; 14-a second regulating valve; 15-water inlet cavity; 16-a membrane element; 17-membrane module housing.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.

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 application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1-7, the present application provides a novel ceramic membrane water purifying device, which comprises a feed pump 1, a ceramic membrane filter 2, a backwashing water storage tank 3, a gas storage tank 4 and an air compressor 5, wherein a water inlet end of the feed pump 1 is communicated with a raw water inlet pipe 6 to be treated, a water outlet end of the feed pump 1 is communicated with a first pipeline, the first pipeline is provided with a water inlet regulating valve 7 and a backwashing pneumatic valve 8, the first pipeline is provided with a chlorine adding port 9, a water inlet end of the ceramic membrane filter 2 is communicated with a side wall of the first pipeline, an outlet end of the ceramic membrane filter 2 is communicated with a second pipeline, the first pipeline and the second pipeline are both provided with a pressure gauge 10, the backwashing water storage tank 3 is communicated with the second pipeline, a water outlet pipe is communicated with a water outlet pipe, the water outlet pipe is provided with a water production regulating valve 11, the second pipeline is provided with a backwashing pneumatic valve 12, a third pipeline is communicated between the gas storage tank 4 and a side wall of the water storage tank 3, and a first regulating valve 13 is arranged on the third pipeline, a fourth pipeline is communicated between the air storage tank 4 and the air compressor 5, and a second regulating valve 14 is arranged on the fourth pipeline.

When specifically setting up, the theory of operation of feed pump 1 and air compressor machine 5 is prior art, and the raw water gets into first pipeline after feed pump 1 pressurizes, sets up on the first pipeline and adds chlorine mouth 9, adds first pipeline with sodium hypochlorite and mixes with water, and the raw water that contains sodium hypochlorite gets into in ceramic membrane filter 2, through the separation, impurity such as aquatic colloid, microorganism, particulate matter are held back, and the water after the purification passes through the outlet pipe and gets into the pipe network.

Further, after a certain amount of pollutants are enriched in the ceramic membrane filter 2, the front-back pressure difference is increased, the flux of the ceramic membrane filter 2 is reduced, at the moment, the first regulating valve 13, the back-washing pneumatic valve 8, the back-washing pneumatic valve 12 and the second regulating valve 14 are opened, the water inlet regulating valve 7 and the water production regulating valve 11 are closed, air is compressed into the air storage tank 4 through the air compressor 5, then the back-washing water storage tank 3 is used for back-washing the ceramic membrane filter 2, and back-washing water is discharged through the back-washing pneumatic valve 8.

The ceramic membrane filter 2 comprises a water inlet cavity 15, a membrane element 16 and a membrane element shell 17, wherein the membrane element 16 is fixedly arranged in the water inlet cavity 15 through the membrane element shell 17, the membrane element 16 consists of a plurality of membrane channels A and a plurality of membrane channels B, and a membrane layer C is arranged between the membrane channels A and the membrane channels B.

When the ceramic membrane filter 2 is specifically arranged, a backflushing device interface is installed, the volume of a backflushing tank is determined according to the membrane area, when the pressure difference between a membrane liquid inlet end and a membrane liquid outlet end exceeds 0.5-2bar, a filter liquid is automatically adopted to backflush the filter intermittently, a filter cake layer attached to the membrane surface is peeled off and discharged out of the filter, so that membrane pollution is effectively prevented, and the long-term stable operation of a system is ensured.

Further, the operation principle in water treatment is as follows: raw water enters the ceramic membrane filter 2 and enters the membrane channel from the water inlet end of the channel A, the water inlet end of the channel B is blocked, feed liquid enters the channel A, and the feed liquid permeates into the channel B from the membrane layer C and flows out from the water production end of the channel B due to the blockage of the water production end of the channel A.

The working principle of the novel ceramic membrane water purifier is as follows: all valves of inspection all are in the closed condition, open into water governing valve 7 and produce water governing valve 11, pending raw water gets into pending raw water and advances pipe 6, get into first pipeline after 1 pressurization of via the feed pump, add sodium hypochlorite through adding chlorine mouth 9 simultaneously, with the interior raw water mixing of first pipeline, get into in the ceramic membrane filter 2, filter through membrane element 16, the aquatic colloid, impurity such as microorganism and particulate matter filters on the face of membrane, the water after the filtration passes through the outlet pipe and discharges to the pipe network.

Further, after pollutants are enriched on the membrane surface of the membrane element 16, the front-back pressure difference of the membrane surface of the membrane element 16 is increased, at the moment, the back-flushing pneumatic valve 8, the back-flushing pneumatic valve 12, the first regulating valve 13 and the second regulating valve 14 are closed, air is compressed into the air storage tank 4 through the air compressor 5, back flushing of the membrane surface of the membrane element 16 is achieved through the back-flushing water storage tank 3, and back flushing water is discharged to the outside through the back-flushing pneumatic valve 8 on one side of the first pipeline.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (3)

1. A novel ceramic membrane water purifying device is characterized by comprising a feed pump (1), a ceramic membrane filter (2), a backwashing water storage tank (3), a gas storage tank (4) and an air compressor (5), wherein the water inlet end of the feed pump (1) is communicated with a raw water inlet pipe (6) to be treated, the water outlet end of the feed pump (1) is communicated with a first pipeline, the first pipeline is provided with a water inlet regulating valve (7) and a backwashing pneumatic valve (8), the first pipeline is provided with a chlorination port (9), the water inlet end of the ceramic membrane filter (2) is communicated with the side wall of the first pipeline, the outlet end of the ceramic membrane filter (2) is communicated with a second pipeline, the first pipeline and the second pipeline are both provided with a pressure gauge (10), the backwashing water storage tank (3) is communicated with the second pipeline, and the side wall of the second pipeline is communicated with a water outlet pipe, be provided with on the outlet pipe and produce water governing valve (11), be provided with recoil pneumatic valve (12) on the second pipeline, gas holder (4) with the intercommunication has the third pipeline between the lateral wall of back flush water storage tank (3), be provided with first governing valve (13) on the third pipeline, gas holder (4) with the intercommunication has the fourth pipeline between air compressor machine (5), be provided with second governing valve (14) on the fourth pipeline.

2. A novel ceramic membrane water purification device according to claim 1, wherein the ceramic membrane filter (2) comprises a water inlet chamber (15), a membrane element (16) and a membrane module housing (17), and the membrane element (16) is fixedly mounted in the water inlet chamber (15) through the membrane module housing (17).

3. A novel ceramic membrane water purification device as claimed in claim 2, wherein the membrane element (16) is composed of a plurality of membrane channels a and a plurality of membrane channels B, and a membrane layer C is disposed between the membrane channels a and B.

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