CN202224072U

CN202224072U - High-efficiency self-cleaning jet flow membrane device

Info

Publication number: CN202224072U
Application number: CN201120300379XU
Authority: CN
Inventors: 王建刚
Original assignee: ZHENGZHOU YINKER TECHNOLOGY Co Ltd
Current assignee: ZHENGZHOU YINKER TECHNOLOGY Co Ltd
Priority date: 2011-08-18
Filing date: 2011-08-18
Publication date: 2012-05-23
Anticipated expiration: 2021-08-18

Abstract

The utility model discloses a high-efficiency self-cleaning jet flow membrane device comprising a clean water groove (1), a circulating pump (4), a circulating tank (5), a first flow divider (11), a second flow divider (19) and at least one set of membrane assembly mechanism. A water outlet of the circulating pump (4) is connected with the second flow divider (19), two sides of the circulating pump (4) are in parallel connection with drain pipes, of which the number is the same as that of the membrane assembly mechanism, each drain pipe is provided with a drain valve, the water gap at the bottom of the each set of the membrane assembly mechanism is connected with a water introducing and discharging pipe, each drain pipe corresponds to and is connected with one water introducing and discharging pipe by a jet device. According to the high-efficiency self-cleaning jet flow membrane device, the negative pressure cleaning mode is adopted, so that the pressure acts on the dirt on the surface of the membrane directly, the flux of the membrane assembly can recover rapidly and achieves more than 90%, simultaneously, a plurality of membrane assemblies connected together in parallel can be cleaned automatically and alternatively one by one, the continuous stable work of the membrane assemblies can be guaranteed, and the running efficiency is improved.

Description

Efficient self-cleaning jet film device

Technical field

The utility model belongs to high accuracy film material concentrating and separating and sewage purification field (comprising micro-filtration, ultrafiltration, nanofiltration and reverse osmosis membrane), is specifically related to a kind of efficient self-cleaning jet film device.

Background technology

It is that the high accuracy film is done the problem that often runs in the use of material concentrating and separating and sewage purification that film pollutes, and it has brought very big difficulty for the reliability service of membrane module, and the control of therefore film being polluted is very important to the high accuracy film.

Film pollutes has two kinds of situation: a kind of is adhesion layer; It is by material suspended particle, colloidal dissolved substance; Perhaps because growing of microorganism forms cover layer (dirt) on film; Another kind is to stop up, promptly by solute in the feed liquid etc. concentrate, crystallization or deposition cause fenestra to produce obstruction in various degree, thereby cause the continuous decline of flux.Therefore membrane module cleans in the process of using and is absolutely necessary.

The main mode that existing membrane module controlling diaphragm pollutes is square impact and malleation backwash.Generally, rinse water is through after the high accuracy film, because the pressure loss is excessive; Do not had enough energy film is cleaned, membrane flux is returned to about 30%, and the film pipe range time pollutes; Can cause the permanent throughput loss of part of film, influence the service life of film.

The utility model content

The utility model is in order to solve weak point of the prior art; A kind of efficient self-cleaning jet film device is provided; This device can be realized the automatic online cleaning, and the equipment that do not influence is simultaneously normally made the continuity that water conservancy project is done, and cleaning efficiency is high; The membrane flux recovery effects is good, makes the efficient for a long time operation of film device.

For solving the problems of the technologies described above; The utility model adopts following technical scheme: efficient self-cleaning jet film device; Comprise Rinsing Area 1, circulating pump 4, circulating tank 5, first current divider 11, second current divider 19 and at least one mantle components mechanism, connect through clear liquid pipe 22 between many mantles components mechanism that Rinsing Area 1 is connected through penetrating fluid carrier pipe 23 with clear liquid pipe 22; The liquid return hole at every mantle components mechanism top all is connected through first current divider 11 with circulating tank 5; The pump mouth of circulating pump 4 is connected through water inlet pipe 6 with circulating tank 5, and the delivery port of said circulating pump 4 is connected with second current divider 19, is parallel with on second current divider 19 and the identical drainpipe of membrane module mechanism quantity; Be equipped with a draining valve on the every drainpipe; The bottom intake-outlet of every mantle components mechanism is connected with a water inlet pipe and water outlet pipe respectively, and every drainpipe is corresponding to be connected through an ejector with a water inlet pipe and water outlet pipe, and the junction of every drainpipe and water inlet pipe and water outlet pipe is between the draining valve and second current divider 19.

Said membrane module mechanism is provided with two covers; One mantle components mechanism comprises that the liquid return hole at 2, numbers membrane module 2 tops of a membrane module is connected with 20, numbers liquid back pipes 20 of a liquid back pipe and is provided with check valve 13 No. one; Another set of membrane module mechanism comprises that the liquid return hole at 3, No. two membrane module 3 tops of No. two membrane modules is connected with 21, No. two liquid back pipes 21 of No. two liquid back pipes and is provided with check valve 14 No. two; No. one liquid back pipe 20 all is connected with first current divider 11 with No. two liquid back pipes 21.

Said first current divider 11 is provided with pressure regulator valve 18.

Said penetrating fluid carrier pipe 23 is provided with purge valve 17.

Said water inlet pipe 6 is provided with water intaking valve 12.

The backwash technology that the utility model adopted is high accuracy film negative pressure backwash technology; In the film use, break through and enriched existing cleaning, utilize the characteristic of ejector; Reach when not influencing other membrane module operate as normal the purpose of separately membrane module of appointment being carried out backwash.

The utility model adopts a plurality of membrane module parallel connections, by the mode of a circulating pump feed according to the shunting principle of current divider; Form a system, when utilizing liquid at high speed to pass through ejector, can be at the branch road of air inlet direction; Produce the technology of negative pressure principle and negative pressure backwash; When not influencing other membrane module and carrying out material concentrating and separating or water treatment, reach can replace, regularly to specifying membrane module to carry out clean and maintenance, improved the purpose of film device operating efficiency.

Adopt technique scheme, have following beneficial effect:

Regularly blowdown, be difficult for dirty stifledly, utilize negative pressure backwash technology to combine the characteristic of ejector, obtain automatically, regularly to film device clean, membrane flux is high, stabilization time is long.The negative pressure backwash promptly with the method for suction, is removed the dirt layer of interior pollutant of fenestra and film pipe internal surface, and the performance of film is restored, and is superior to the film recovery effects that malleation is cleaned greatly, has improved the efficient of cleaning.

Little to the normal influence on system operation of film system, the membrane module of appointment is cleaned, and do not influence the normal process of other membrane module, make entire equipment under the situation of operation, clean with material concentrating and separating or water treatment and carry out simultaneously independently.

The stability of material is guaranteed, and utilizes the jet flow negative pressure mode, can dirt in time be excluded membrane module, thereby guarantees stable the stable of membrane module work that reach of material concentration of membrane module.

The inlet of film is a high-pressure side, and is contaminated more easily, adopts the jet flow negative pressure cleaning way, and the negative pressure of formation directly acts on high-pressure side, so cleaning performance is better.

The utility model is simple in structure, utilizes a circulating pump that several membrane modules are worked and maintenance automatically normally, has simplified handling process.The negative pressure cleaning way that the utility model adopts is a kind of can pressure being acted directly on the dirt on film surface; Make the fast quick-recovery of flux of membrane module, reach more than 90%, and the cleaning way of employing jet flow negative pressure; The advantage that has possessed negative pressure mode; Also can realize automation, alternately clean one by one a plurality of membrane modules that are connected in parallel simultaneously, guarantee the continous-stable work of membrane module, improve operational efficiency.

Description of drawings

Fig. 1 is the structural representation of the utility model.

The specific embodiment

As shown in Figure 1; The efficient self-cleaning jet film device of the utility model; Comprise Rinsing Area 1, circulating pump 4, circulating tank 5, first current divider 11, second current divider 19 and two mantle components mechanisms; One mantle components mechanism comprises that the liquid return hole at 2, numbers membrane module 2 tops of a membrane module is connected with 20, numbers liquid back pipes 20 of a liquid back pipe and is provided with check valve 13 No. one; Another set of membrane module mechanism comprises that the liquid return hole at 3, No. two membrane module 3 tops of No. two membrane modules is connected with 21, No. two liquid back pipes 21 of No. two liquid back pipes and is provided with check valve 14 No. two; No. one liquid back pipe 20 all is connected with circulating tank 5 through first current divider 11 with No. two liquid back pipes 21.Be connected through clear liquid pipe 22 between membrane module 2 and No. two membrane modules 3; Rinsing Area 1 is connected with clear liquid pipe 22 through penetrating fluid carrier pipe 23 with the outlet of a membrane module 2 and No. two membrane module 3 upper lateral parts, and the pump mouth of circulating pump 4 is connected through water inlet pipe 6 with circulating tank 5.The delivery port of circulating pump 4 is connected with second current divider 19; Be parallel with a drainpipe 7 and No. two drainpipes 8 in its both sides; No. one drainpipe 7 is provided with draining valve 15 No. one; No. two drainpipe 8 is provided with draining valve 16 No. two; The bottom intake-outlet of a membrane module 2 and No. two membrane modules 3 is connected with a water inlet pipe and water outlet pipe 24 respectively and 25, numbers drainpipes 7 of No. two water inlet pipe and water outlet pipes are connected through an ejector 9 with a water inlet pipe and water outlet pipe 24, and No. two drainpipe 8 is connected through No. two ejectors 10 with No. two water inlet pipe and water outlet pipes 25; The junction of a drainpipe 7 and a water inlet pipe and water outlet pipe 24 is between the draining valve 15 and second current divider 19, and the junction of No. two drainpipes 8 and No. two water inlet pipe and water outlet pipes 25 is between No. two draining valves 16 and second current divider 19.First current divider 11 is provided with pressure regulator valve 18, and penetrating fluid carrier pipe 23 is provided with purge valve 17.Water inlet pipe 6 is provided with water intaking valve 12.

Below be the course of work of the utility model:

When a membrane module 2 and No. two membrane modules 3 are all normally made water; Start circulating pump 4; Close draining valve 15 and No. two draining valves 16 on No. two drainpipes 8 on drainpipe 7; All the other valves are all opened; And the pressure regulator valve 18 on first current divider 11 partially opened, the stostes in the circulating tank 5 enter into second current divider 19 through water inlet pipe 6, circulating pump 4, and a part of then stoste enters in membrane module 2 through drainpipe 7, ejector 9 and water inlet pipe and water outlet pipe 24; Simultaneously another part stoste enters in No. two membrane modules 3 through No. two drainpipes 8, No. two ejectors 10 and No. two water inlet pipe and water outlet pipes 25, and the clear water after No. a membrane module 2 filters with No. two membrane modules 3 is through clear liquid pipe 22 and penetrating fluid carrier pipe 23 inflow Rinsing Areas 1.Simultaneously, dense water gets in the circulating tank 5 through first current divider 11 once more, has reached that feed separation concentrates or the process of water treatment.Get into an ejector 9 and No. two ejectors 10 in feed liquid; And in the process through suction chamber entering membrane module 2 of membrane module and No. two membrane modules 3; A membrane module 2 and No. two membrane modules 3 are selected cross-flow filtration or dead-end filtration according to the concentration of filter type and feed liquid and the content of pollutant.

In the time of need cleaning certain membrane module, for example a membrane module 2 is cleaned, circulating pump 4 is not shut down; Only need a draining valve 15 on drainpipe 7 is opened, check valve 13 just reaches the self-cleaning purpose of membrane module 2 because negative pressure is closed; Clear water passes through penetrating fluid carrier pipe 23 and clear liquid pipe 22 gets into a membrane module 2, and the high speed process needs an ejector 9 of membrane module 2 belows of cleaning again, at this moment; The suction chamber of ejector 9 produces suction, and membrane module 2 interior feed liquids are extracted out, and pressure descends; Formation directly acts on " negative pressure " on dirt surface, under the effect of inside and outside differential pressure, in membrane module 2 of the reverse entering of the water in the Rinsing Area 1; Therebetween, clear water can go out fenestra with impurity bands such as the big molecule solute that stops up fenestra, bacterium secretion, and destroys gel layer even the inorganic salt crust layer that adheres at the film pipe internal surface; The flux recovery rate of film is reached more than 90%, guarantee film system sustainable high efficiency disposal ability.At last through draining valve 15 discharge systems; The normal system water conservancy project of No. two membrane modules 3 is simultaneously done unaffected fully.Identical when No. two membrane modules 3 are cleaned with the process of cleaning a membrane module 2, repeat no more.The utility model has been realized the equipment automatization on-line cleaning, and the equipment that do not influence is simultaneously normally made water conservancy project and made successional function, reaches the purpose of equipment self-cleaning, makes the continuous operation steady in a long-term of equipment ability.

Claims

1. efficient self-cleaning jet film device; Comprise Rinsing Area (1), circulating pump (4), circulating tank (5), first current divider (11), second current divider (19) and at least one mantle components mechanism; Connect through clear liquid pipe (22) between many mantles components mechanism; Rinsing Area (1) is connected through penetrating fluid carrier pipe (23) with clear liquid pipe (22); The liquid return hole at every mantle components mechanism top all is connected through first current divider (11) with circulating tank (5); The pump mouth of circulating pump (4) is connected through water inlet pipe (6) with circulating tank (5), it is characterized in that: the delivery port of said circulating pump (4) is connected with second current divider (19), is parallel with on second current divider (19) and the identical drainpipe of membrane module mechanism quantity; Be equipped with a draining valve on the every drainpipe; The bottom intake-outlet of every mantle components mechanism is connected with a water inlet pipe and water outlet pipe respectively, and every drainpipe is corresponding to be connected through an ejector with a water inlet pipe and water outlet pipe, and the junction of every drainpipe and water inlet pipe and water outlet pipe is positioned between draining valve and second current divider (19).

2. efficient self-cleaning jet film device according to claim 1 is characterized in that: said membrane module mechanism is provided with two covers; One mantle components mechanism comprises a membrane module (2), and the liquid return hole at a membrane module (2) top is connected with a liquid back pipe (20), and a liquid back pipe (20) is provided with a check valve (13); Another set of membrane module mechanism comprises No. two membrane modules (3), and the liquid return hole at No. two membrane modules (3) top is connected with No. two liquid back pipes (21), and No. two liquid back pipes (21) are provided with No. two check valves (14); A liquid back pipe (20) all is connected with first current divider (11) with No. two liquid back pipes (21).

3. efficient self-cleaning jet film device according to claim 1 and 2, it is characterized in that: said first current divider (11) is provided with pressure regulator valve (18).

4. efficient self-cleaning jet film device according to claim 1 and 2, it is characterized in that: said penetrating fluid carrier pipe (23) is provided with purge valve (17).

5. efficient self-cleaning jet film device according to claim 1 and 2, it is characterized in that: said water inlet pipe (6) is provided with water intaking valve (12).