CN222082513U - A highly integrated immersion ultrafiltration cleaning system - Google Patents

Abstract

The utility model relates to a highly integrated submerged ultrafiltration cleaning system, including an ultrafiltration water production pool, a neutralization pool and a cleaning agent pool, wherein the ultrafiltration water production pool is bidirectionally connected with a water inlet valve, an air scrubbing valve, a backwash valve, a water production valve, a circulating cleaning valve, a cleaning agent inlet valve and a cleaning emptying valve through pipelines, the input end on the left side of the water production valve is connected with a water production pump, the input end on the left side of the backwash valve is connected with a backwash pump, and the left side of the cleaning agent inlet valve is connected with a chemical cleaning pump, a cleaning agent pool outlet valve, a cleaning agent pool water inlet valve and a cleaning waste liquid valve. This highly integrated submerged ultrafiltration cleaning system is different from the traditional method of separately setting up an ultrafiltration acid cleaning water pump, an ultrafiltration alkali cleaning water pump, and acid and alkali cleaning water tanks for the cleaning system. This scheme only needs one chemical cleaning pump and a corresponding water tank to complete the cleaning process, which can reduce engineering costs during construction and reduce use costs after being put into operation.

Description

High-integration immersed ultrafiltration cleaning system

Technical Field

The utility model relates to the technical field of ultrafiltration membrane cleaning, in particular to a high-integration immersed ultrafiltration cleaning system.

Background

The ultrafiltration membrane is an artificial permeable membrane used in the ultrafiltration process, and is generally made of high polymer materials such as cellulose acetate, cellulose acetate esters, polyethylene, polysulfone, polyamide and the like, and is generally prepared into various membrane components such as tubular, plate-type, coiled, capillary-type and the like in advance, and then a plurality of components are assembled together for application, so that the filtration area is increased, the maintenance is convenient, and cleaning operation is required after the ultrafiltration membrane is used.

In the existing membrane tank cleaning system, most of the existing membrane tank cleaning system is provided with an ultrafiltrate acid cleaning water pump, an ultrafiltrate alkali cleaning water pump, an acid and alkali cleaning water tank, the number of pumps and pipelines are controlled to achieve the aim of reducing cost, the system is complex and complicated, the cost is high, the layout is up and down, the cleaning tank is filled with water through a water production pump, and then cleaning water flows to the membrane tank through the action of gravity, although equipment configuration can be optimized, the cost is reduced, the equipment configuration is reduced, but the equipment configuration lacks a pump capable of playing a role in medicament circulation, so that the liquid medicine of the chemical cleaning tank cannot be uniform well, chemical circulation cleaning cannot be performed on the inside and outside of the membrane wire, the service life of the membrane wire is shortened, and the water quality of produced water is influenced, so that the high-integration immersed ultrafiltration cleaning system is provided to solve the problems.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides a high-integration immersed ultrafiltration cleaning system which has the advantages of low production cost, good produced water quality and the like, and solves the problem that the cleaning is not enough to thoroughly influence the produced water quality.

The technical scheme is that the high-integration submerged ultrafiltration cleaning system comprises an ultrafiltration water producing tank, a neutralization tank and a cleaning agent tank, wherein the right side of the ultrafiltration water producing tank is respectively and bidirectionally connected with a water inlet valve and an air scrubbing valve through pipelines, the top of the ultrafiltration water producing tank is bidirectionally connected with a backwash valve, a water producing valve and a circulating cleaning valve through pipelines, the left side of the ultrafiltration water producing tank is bidirectionally connected with a cleaning agent inlet valve and a cleaning emptying valve through pipelines, the left input end of the water producing valve is bidirectionally connected with a water producing pump through pipelines, the left side of the backwash valve is bidirectionally connected with a backwash pump through pipelines, the left sides of the cleaning agent inlet valve, the circulating cleaning valve and the cleaning emptying valve are bidirectionally connected with a chemical cleaning pump through pipelines, the right side of the cleaning agent tank is bidirectionally connected with a cleaning agent tank outlet valve and a cleaning agent tank inlet valve through pipelines, and the right side of the cleaning agent tank inlet valve is bidirectionally connected with a cleaning waste liquid valve which is bidirectionally connected with the neutralization tank.

Further, the left side of the neutralization tank is connected with the cleaning and emptying valve in a two-way mode through a pipeline.

Further, the right input end of the air scrubbing valve is connected with an air scrubbing fan through a pipeline.

Further, the output end on the right side of the water inlet valve is connected with a wastewater tank in a two-way manner through a pipeline.

Further, the left input ends of the backwash pump and the water producing pump are connected with a finished water tank in a two-way through pipelines.

Furthermore, an ultrafiltration device is arranged in the ultrafiltration water producing tank, and the ultrafiltration device comprises an ultrafiltration membrane stack, a matched pipeline, a valve group, a detection instrument and a support steel frame for supporting.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

1. This high integrated submergence formula ultrafiltration cleaning system is different from traditional with cleaning system set up ultrafiltration acid wash water pump respectively, ultrafiltration alkali wash water pump, and its acid, alkali wash water tank's mode, and this scheme only needs a chemistry wash pump and corresponding water tank can accomplish the cleaning process, can reduce engineering cost during the construction, also can reduce use cost after putting into operation.

2. This high integrated submergence formula ultrafiltration cleaning system, accessible pipeline setting makes the chemical cleaning pump can also regard as membrane pond evacuation pump and disqualified water discharge pump to use, improves the product water quality after the washing, further reduces use cost simultaneously.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model.

In the figure, a ultrafiltration water producing tank, a neutralization tank, a cleaning agent tank, a 4 water inlet valve, a 5 water producing valve, a 6 backwashing valve, a 7 gas scrubbing valve, a 8 cleaning agent inlet valve, a 9 circulating cleaning valve, a 10 cleaning emptying valve, a 11 water producing pump, a 12 backwashing pump, a 13 chemical cleaning pump, a 14 cleaning agent tank medicine outlet valve, a 15 cleaning waste liquid valve and a 16 cleaning agent tank water inlet valve are arranged.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, a highly integrated submerged ultrafiltration cleaning system in this embodiment includes an ultrafiltration water producing tank 1, a neutralization tank 2 and a cleaning agent tank 3, wherein an ultrafiltration device is provided in the ultrafiltration water producing tank 1, the ultrafiltration device includes an ultrafiltration membrane stack and its supporting pipelines, a valve group, a detection instrument and a supporting steel frame for supporting, under normal design conditions, the water flow rate passing through a unit membrane area in unit time is the designed membrane flux, a membrane module used in the water production is a membrane separation unit composed of membrane wires, a membrane supporting body, a flow channel spacer, a filtered water collecting pipe and the like, and the service life of the membrane refers to the time for maintaining a predetermined performance of a membrane element under normal use conditions.

It should be further explained that dead-end filtration, i.e. full-flow filtration, no concentrated water circulation, and all the inflows are filtered to the water producing side through ultrafiltration membranes, and the ultrafiltration device main system is composed of a plurality of ultrafiltration membrane stacks capable of independently operating, supporting pipelines, valve groups, detection instruments and supporting steel frames for supporting, and the pretreatment system refers to a self-cleaning filtration device and supporting pipeline pipe fittings before raw water ultrafiltration.

In addition, the right side of the ultrafiltration water producing tank 1 is respectively and bidirectionally connected with a water inlet valve 4 and an air scrubbing valve 7 through pipelines, and the output end on the right side of the water inlet valve 4 is bidirectionally connected with a wastewater tank through a pipeline.

And after the water producing operation is carried out for a period of time, backwashing and air scrubbing are carried out, wherein a backwashing system refers to a backwashing pool, a backwashing pump, an air washing fan, matched equipment, backwashing pipeline pipe fittings and the like for realizing the physical cleaning of the ultrafiltration membrane, and an air system refers to an air washing system, matched equipment, air pipeline pipe fittings and the like of the whole membrane system.

In addition, the input end on the right side of the gas scrubbing valve 7 is connected with a gas scrubbing fan through a pipeline, and the gas scrubbing is a method for removing particle impurities accumulated on membrane fibers by aerating a membrane pool through the gas scrubbing fan.

Further, the top of ultrafiltration water producing tank 1 is connected with backwash valve 6, water producing valve 5 and circulation cleaning valve 9 through the pipeline two-way, and the left side of ultrafiltration water producing tank 1 is connected with washing medicine inlet valve 8 and washs evacuation valve 10 through the pipeline two-way, and the left input of water producing valve 5 is connected with water producing pump 11 through the pipeline two-way, and the left input of backwash valve 6 is connected with backwash pump 12 through the pipeline two-way, and it should be noted that backwash pump 12 and the left input of water producing pump 11 are connected with the finished product pond through the pipeline two-way.

It should be understood that raw water refers to the feed water before entering the ultrafiltration system, and the water production capacity of the mechanism refers to the net water production of the ultrafiltration membrane system after deducting the self-water under specified temperature conditions and any normal operating conditions, mainly referring to back flushing and maintenance chemical cleaning.

And the transmembrane pressure difference refers to the pressure difference between the water inlet side and the water outlet side of the ultrafiltration membrane, namely the water inlet pressure and the water production pressure.

In addition, the chemical cleaning pump 13 is connected to the left side of the cleaning medicine inlet valve 8, the circulating cleaning valve 9 and the cleaning emptying valve 10 in a bidirectional manner through a pipeline, the chemical cleaning outlet valve 14 of the cleaning medicine tank and the water inlet valve 16 of the cleaning medicine tank are connected to the right side of the cleaning medicine tank 3 in a bidirectional manner through a pipeline, the cleaning waste liquid valve 15 connected to the neutralization tank 2 in a bidirectional manner is connected to the right side of the cleaning medicine tank water inlet valve 16 in a bidirectional manner through a pipeline, the left side of the neutralization tank 2 is connected to the cleaning emptying valve 10 in a bidirectional manner through a pipeline, when the operation pressure difference reaches forty kilopascals, chemical cleaning is performed by adopting a method of cleaning dirt on the surface of a film through a chemical medicine, the chemical cleaning is divided into maintenance chemical cleaning and recovery chemical cleaning, the maintenance chemical cleaning is performed by adopting a chemical cleaning mode with lower concentration and shorter soaking time for recovering the film flux and guaranteeing the film to stably operate, the recovery chemical cleaning is performed by adopting a plurality of cleaning modes with prolonged time circulation when the film flux is difficult to recover through the maintenance chemical cleaning, and the backwash is performed by a method of reversely pumping finished water from the product water into a ultrafiltration film assembly through a water pump.

In general, the chemical cleaning pump 13 is used as an evacuation pump of the membrane tank and a reject water discharge pump by piping arrangement.

The control mode of the utility model is controlled by the controller, the control circuit of the controller can be realized by simple programming of a person skilled in the art, the supply of the power supply also belongs to the common knowledge in the art, and the utility model is mainly used for protecting mechanical devices, so the utility model does not explain the control mode and circuit connection in detail.

The working principle of the embodiment is as follows:

(1) When water is produced, the water inlet valve 4 and the water producing valve 5 are opened, finished water is pumped to the ultrafiltration water producing pool 1 through the water producing pump 11 under the action of negative pressure, backwashing and air scrubbing are carried out after a period of operation, and when backwashing is carried out, the finished water is reversely injected into the membrane pool through the backwashing valve 6 and the backwashing pump 12, and when air scrubbing is carried out, the air scrubbing valve 7 is opened, the air scrubbing fan is opened, and air scrubbing is carried out.

(2) When the operation pressure difference reaches forty kilopascals, chemical cleaning is required, the medicine dispensing is finished in the cleaning agent tank 3 before chemical cleaning is performed, the circulating cleaning valve 9 is opened, the cleaning agent tank water inlet valve 16 is opened, finished product water is sent to the cleaning agent tank 3 through the chemical cleaning pump 13, then medicine dispensing is performed, the cleaning agent tank water outlet valve 14 is opened, the cleaning agent tank water inlet valve 16 is opened, the liquid medicine circulation inside the cleaning agent tank 3 is performed through the chemical cleaning pump 13, the chemical mixing effect is achieved, the cleaning agent tank water outlet valve 14 is firstly opened, the membrane tank cleaning water inlet valve 8 is opened, the cleaning agent is sent to the membrane tank through the chemical cleaning pump 13 for chemical cleaning, the chemical cleaning process comprises soaking and circulating cleaning, when the soaking is performed, the cleaning agent tank water outlet valve 14 and the membrane tank cleaning water inlet valve 8 are opened, the membrane tank cleaning water is sent to the membrane tank through the chemical cleaning pump 13, when the ultrafiltration membrane is seriously blocked or the circulating cleaning is required, the circulating cleaning is performed, the chemical cleaning agent tank water inlet valve 9 is required to be opened, the cleaning agent is sent to the membrane tank through the chemical cleaning pump 13, the membrane tank is enabled to penetrate through the membrane and the chemical wire to be completely emptied through the membrane tank 10, the reaction cleaning wire is completely and the waste liquid is completely emptied, and the waste liquid is completely cleaned through the membrane cleaning pump 10 is completely cleaned, and the waste liquid is completely cleaned through the valve is cleaned after the membrane tank is completely cleaned through the valve is opened, and the cleaning valve is completely cleaned.

(3) The membrane tank which is just subjected to chemical cleaning has residual chemical agents on the inner surface and membrane wires, so that the produced water during the operation is unqualified, the produced water during the period is required to be discharged to the neutralization tank 2, the water inlet valve 4 and the circulating cleaning valve 9 are opened, the cleaning waste liquid valve 15 pumps unqualified finished product water to the waste water tank through the chemical cleaning pump 13 under the action of negative pressure, the residual chemical agents in the cleaning chemical agent tank 3 are required to be emptied, the cleaning chemical agent tank medicine outlet valve 14 is opened, the cleaning waste liquid valve 15 is required to send the residual cleaning chemical agents to the neutralization tank 2 through the chemical cleaning pump 13.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made hereto without departing from the spirit and principles of the present utility model.

Claims (6)

1. The utility model provides a high-integration submerged ultrafiltration cleaning system, includes ultrafiltration water producing pond (1), neutralization pond (2) and washs medicament pond (3), its characterized in that, the right side of ultrafiltration water producing pond (1) is through pipeline two-way connection respectively has inlet valve (4) and gas scrubbing valve (7), the top of ultrafiltration water producing pond (1) is through pipeline two-way connection has backwash valve (6), water producing valve (5) and circulation cleaning valve (9), the left side of ultrafiltration water producing pond (1) is through pipeline two-way connection has washing medicine inlet valve (8) and washs evacuation valve (10), the input of water producing valve (5) left side is through pipeline two-way connection has water producing pump (11), the input of backwash valve (6) left side is through pipeline two-way connection has backwash pump (12), the left side of wasing medicine inlet valve (9) and wasing valve (10) is through pipeline two-way connection has chemical cleaning pump (13), the right side of wasing medicament pond (3) is through pipeline two-way connection has medicine outlet valve (14) and washings pond (16) to be connected with medicament pond (16) two-way connection in backwash water inlet valve (2).

2. A highly integrated submerged ultrafiltration cleaning system according to claim 1 wherein the left side of said neutralization tank (2) is connected bi-directionally with a cleaning evacuation valve (10) via a pipe.

3. The high-integration immersed ultrafiltration cleaning system of claim 1, wherein an input end on the right side of the air scrubbing valve (7) is connected with an air scrubbing fan through a pipeline.

4. The high-integration immersed ultrafiltration cleaning system of claim 1, wherein the output end on the right side of the water inlet valve (4) is connected with a wastewater tank in a two-way through a pipeline.

5. The high-integration submerged ultrafiltration cleaning system of claim 1, wherein the input ends of the left side of the backwash pump (12) and the water producing pump (11) are connected with a finished water tank in a two-way through a pipeline.

6. The high-integration immersed ultrafiltration cleaning system of claim 1, wherein an ultrafiltration device is arranged in the ultrafiltration water producing tank (1), and comprises an ultrafiltration membrane stack, a matched pipeline, a valve group, a detection instrument and a supporting steel frame for supporting.