CN211570182U - Immersed ultrafiltration membrane water purification system - Google Patents
Immersed ultrafiltration membrane water purification system Download PDFInfo
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- CN211570182U CN211570182U CN201921966161.0U CN201921966161U CN211570182U CN 211570182 U CN211570182 U CN 211570182U CN 201921966161 U CN201921966161 U CN 201921966161U CN 211570182 U CN211570182 U CN 211570182U
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Abstract
The utility model discloses an submergence formula milipore filter water purification system. The utility model discloses a raw water tank is through the tube coupling self-cleaning filter of installation intake pump, and the raw water entry of self-cleaning filter below the intake pipe connection ultrafiltration membrane core pressure vessel through setting gradually inlet valve and intake pressure table, the delivery port of ultrafiltration membrane core pressure vessel top is through setting gradually the product water pipe connection product water tank of producing water manometer, product water flowmeter and product water valve. General submergence formula milipore filter filtration system unit area design flux is on the low side than continuous membrane filtration technology, the utility model discloses can be totally according to continuous membrane filtration technology flux design, general flux can improve 1/3 flux than prior art.
Description
Technical Field
The utility model relates to a small-scale aqueous cleaning field, more specifically say, relate to a novel submergence formula milipore filter water purification system.
Background
The immersed ultrafiltration membrane filtration system needs to design a civil structure as a filtration membrane pool in the fields of municipal water supply, industrial water, seawater desalination, small-scale purification and drinking of surface water, underground water and the like, so that the investment cost and the occupied area of the project are greatly increased.
The immersed ultrafiltration membrane equipment in the prior art finishes the membrane filtration process by negative pressure suction of a centrifugal pump, the immersed ultrafiltration membrane equipment is immersed in a membrane pool in the process, and the liquid level of the water surface is higher than that of the membrane equipment so as to carry out filtration. The prior art can only utilize the negative pressure suction of a centrifugal pump to complete the membrane filtration process, and needs a great deal of work such as civil engineering and construction of a membrane pool.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the not enough of existence among the prior art is overcome, provide an submergence formula milipore filter water purification system.
The utility model discloses submergence formula milipore filter water purification system is realized through following technical scheme, and the former water tank is through the pipe connection self-cleaning filter of installation intake pump, and the self-cleaning filter is through the raw water entry of the water intake pipe connection milipore filter core pressure vessel below that sets gradually inlet valve and intake pressure gauge, and the delivery port of milipore filter core pressure vessel top is through setting gradually the product water pressure gauge, producing water flowmeter and producing the water production pipeline of water valve and connecting the product water tank;
the air storage tank is connected with an aeration port below the ultrafiltration membrane core pressure container through an air passage provided with an air inlet valve, an air outlet at the top of the ultrafiltration membrane core pressure container is connected with a return pipeline provided with an upper discharge valve, and a discharge port at the bottom of the ultrafiltration membrane core pressure container is connected with a drain pipeline provided with a lower discharge valve; the return pipeline is connected with the raw water tank through a return branch provided with a return pressure gauge, a return valve and a return flowmeter;
a backwashing pipeline which is sequentially provided with a backwashing pump, a backwashing pressure gauge, a backwashing flow meter and a backwashing valve is connected with a water production pipeline below the backwashing tank; the water production pipeline is connected with a backwashing tank through a pipeline provided with a backwashing water replenishing valve;
the cleaning pump is respectively connected with the cleaning tank and a dosing pipeline provided with a cleaning medicine inlet valve, the dosing pipeline is connected with the water inlet pipeline and enters cleaning water of the membrane assembly, the return pipeline is connected with the cleaning tank through a cleaning return valve cleaning branch, and the water production pipeline is connected with the cleaning tank through a water production return valve pipeline.
The hollow fiber ultrafiltration membrane core is arranged in an ultrafiltration membrane core pressure container and is sealed with the ultrafiltration membrane core pressure container through a sealing ring of the hollow fiber ultrafiltration membrane filter core, the main body of the ultrafiltration membrane core pressure container consists of a filter cylinder, a detachable upper cover and a support mechanism, a sealing and fixing structure with the hollow fiber ultrafiltration membrane filter core, a water production pipeline, a water inlet pipeline, an upper pipeline, a lower pipeline, an exhaust system and an air distribution system are arranged in the main body of the pressure container, the filter cylinder is used as the main body of the pressure container, the support mechanism is arranged at the bottom, the detachable upper cover is arranged at the upper end of the main body, the sealing ring is arranged between the filter cylinder and the detachable upper cover to ensure the airtightness in the container, the filter cylinder and the detachable upper cover are connected and fixed through bolts and nuts, the; the bottom of the filter cylinder is provided with a lower row of pipelines which are communicated with the inside of the filter cylinder; an upper row of pipelines are arranged at the position close to the upper end of the side part of the filter cylinder; a water production pipeline is arranged at the position close to the upper end of the side part of the filter cylinder and is guided by a pipeline in the filter core; the lower part of the filter cylinder is provided with an air distribution system, the top of the detachable upper cover is provided with an exhaust system, and the positive flushing link of the whole device in the operation process needs to discharge the air in the container.
Compared with the prior art, the beneficial effects of the utility model are that:
the immersed hollow fiber ultrafiltration membrane module of the prior art needs to be designed with a centrifugal pump negative pressure suction to finish the membrane filtration process in the application process, and the utility model relates to an immersed hollow fiber ultrafiltration membrane core provides positive pressure driving pressure and acts on the process of membrane filtration in the pressure vessel and then finish through the design centrifugal pump.
1. The utility model discloses different with current submergence formula milipore filter filtration technology, current submergence formula milipore filter filtration technology uses centrifugal pump negative pressure suction to accomplish the membrane filtration process, the utility model discloses can use the centrifugal pump malleation to accomplish the membrane filtration process, the current booster pump or the long-range delivery pump that all are equipped with of handling surface water or groundwater as the drinking water simultaneously, the utility model discloses also can not be equipped with the centrifugal pump and use the pressure that current booster pump or long-range delivery pump provided to accomplish the membrane filtration process.
2. The prior art handles surface water or groundwater as the general immersed ultrafiltration membrane filtration technique that adopts of drinking water, immersed membrane filtration technique need carry out the civil engineering structure as the membrane pond, the utility model discloses a put into special pressure vessel with the immersed ultrafiltration membrane and accomplish the membrane filtration process as the membrane pond, save the civil engineering design construction of original technique.
3. General submergence formula milipore filter filtration system unit area design flux is on the low side than continuous membrane filtration technology, the utility model discloses can be totally according to continuous membrane filtration technology flux design, general flux can improve 1/3 flux than prior art.
Drawings
Fig. 1 is a schematic view of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, a raw water tank is connected with a self-cleaning filter through a pipeline provided with a water inlet pump, the self-cleaning filter is connected with a raw water inlet below an ultrafiltration membrane core pressure container through a water inlet pipeline which is sequentially provided with a water inlet valve 1 and a water inlet pressure gauge, and a water outlet above the ultrafiltration membrane core pressure container is connected with a water production tank through a water production pipeline which is sequentially provided with a water production pressure gauge, a water production flow meter and a water production valve;
the air storage tank is connected with an aeration port below the filter membrane core pressure container through an air path provided with an air inlet valve 6, an air outlet at the top of the filter membrane core pressure container is connected with a return pipeline provided with an upper discharge valve, and a discharge port at the bottom of the filter membrane core pressure container is connected with a drainage pipeline provided with a lower discharge valve; the return pipeline is connected with the raw water tank through a return branch provided with a return pressure gauge, a return valve and a return flowmeter;
a backwashing pipeline which is sequentially provided with a backwashing pump, a backwashing pressure gauge, a backwashing flow meter and a backwashing valve is connected with a water production pipeline below the backwashing tank; the water production pipeline is connected with a backwashing tank through a pipeline provided with a backwashing water replenishing valve;
the cleaning pump is respectively connected with the cleaning tank and a dosing pipeline provided with a cleaning medicine inlet valve, the dosing pipeline is connected with the water inlet pipeline and enters cleaning water of the membrane assembly, the return pipeline is connected with the cleaning tank through a cleaning branch provided with a cleaning return valve 10, and the water production pipeline is connected with the cleaning tank through a pipeline provided with a water production return valve 11.
The purification process of the system is detailed below:
firstly, water preparation:
the upper discharge valve 7 is opened firstly, then the water inlet valve 1 is opened, then the water inlet pump is opened, after water is filled in the membrane system, the upper discharge valve 7 is closed, the backwashing water replenishing valve 3 and the backflow valve 4 are opened, a small part of raw water returns to the raw water tank through the backflow valve, most of produced water is filled in the backwashing tank, after the backwashing tank is full, the water producing valve 2 is opened, the backwashing water replenishing valve 3 is closed, and the produced water is conveyed to the water production tank. The membrane system is cross-flow filtration (the total flow filtration is realized by closing the reflux valve 4).
And setting reasonable water producing time according to the water quality condition of raw water. Under the condition, the oxidizing bactericide can be directly added into the membrane filtration stock solution system from the dosing point II through a metering pump according to the requirements of the quality of raw water or the quality of product water.
Secondly, scrubbing by air:
after the water production period is finished, the gas scrubbing stage is started, the water inlet pump is closed, the water inlet valve 1 is closed, and then the backflow valve 4 and the water production valve 2 are closed. Then the upper row of valves 7 is opened first, and then the air inlet valve 6 is opened, so that compressed air enters the membrane module.
When compressed air is introduced, the membrane filaments swing under the action of the ascending air flow, so that the membrane filaments rub and collide with each other, and pollutants attached to the walls of the membrane filaments are peeled off and fall off.
Air-water backwashing
After the air scrubbing is finished, the air-water backwashing stage is carried out. The upper discharge valve 7 and the air inlet valve 6 are kept open, the backwashing valve 5 is opened again, then the backwashing pump is started, backwashing water and compressed air enter the membrane assembly, reasonable backwashing water flow is adjusted (the backwashing pump is a variable frequency pump and is realized by adjusting the running frequency of the backwashing pump), and reasonable gas flow and cleaning time are controlled.
When compressed air is introduced, the membrane filaments swing under the action of the ascending air flow, so that the membrane filaments rub and collide with each other, and pollutants attached to the walls of the membrane filaments are peeled off and fall off. The purpose of the backwash water is to loosen the sediment on the membrane surface and keep the membrane module filled with liquid, thereby exerting the effect of air oscillation to the maximum extent.
Fourthly, pollution discharge
After the gas-water reverse washing, the system empties the membrane module, firstly closes the reverse washing pump, then closes the reverse washing valve 5 and the air inlet valve 6, keeps the upper discharge valve 7 open and opens the lower discharge valve 8, and discharges the residual concentrated sewage in the pipeline of the membrane module and the membrane device.
The lower discharge has the advantage that the instantaneous large flow lower discharge can play the roles of scouring and entrainment.
Fifth, maintenance chemical cleaning
The maintenance chemical cleaning is to clean the membrane module after the membrane module is polluted to a certain degree, and the performance of the membrane module after being cleaned can be greatly recovered.
Maintenance chemical clean CEB (using backwash channel):
firstly, cleaning the membrane module as clean as possible by physical backwashing before cleaning, opening an upper discharge valve 7 and a lower discharge valve 8, and closing the valves after emptying the whole membrane system.
Firstly opening an upper discharge valve 7 and a backwashing valve 5, then opening a backwashing pump, simultaneously pumping in a proper amount of medicament required for cleaning through a metering pump of a medicament feeding point I, enabling the cleaning medicament and backwashing water to penetrate through the interior of the membrane yarn and simultaneously enter the membrane assembly, discharging gas out of the membrane assembly through the upper discharge valve 7, after the membrane assembly is filled with the gas, firstly closing the backwashing pump, then closing the backwashing valve 5 and the upper discharge valve 7, standing the whole system, and soaking the liquid medicament in the membrane assembly for a proper time.
Thirdly, after soaking, the steps of gas scrubbing and gas water washing are carried out, then the upper discharge valve 7 and the lower discharge valve 8 are opened, after the whole membrane system is emptied, the valves are closed, and the cleaning is finished.
Maintenance chemical cleaning EFM: (using a washing channel)
Firstly, cleaning the membrane module as clean as possible by physical backwashing before cleaning, opening an upper discharge valve 7 and a lower discharge valve 8, and closing the valves after emptying the whole membrane system.
Secondly, a proper amount of water is prepared in the cleaning tank, a cleaning water inlet valve 9 is firstly opened, a cleaning backflow valve 10 and a water production backflow valve 11 are then opened, finally a cleaning pump is opened, and meanwhile, a metering pump of a dosing point II is used for pumping the required proper amount of cleaning agent, so that the cleaning agent and the cleaning water simultaneously enter the membrane shell member, the cleaning water enters the membrane assembly, one part of the cleaning agent flows back to the cleaning tank through the cleaning backflow valve 10, and the other part of the cleaning agent flows back to the cleaning tank through the water production backflow valve 11 through the membrane wires, and a cross flow circulation is formed.
And thirdly, the cleaning pump and the valve are closed to soak the whole membrane system in proper circulation time.
Fourthly, after soaking, the steps of gas scrubbing and gas water washing are carried out, then the upper discharge valve 7 and the lower discharge valve 8 are opened, after the whole membrane system is emptied, the valves are closed, and the cleaning is finished.
Sixthly, stopping the machine
Instructions for downtime/maintenance downtime
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (2)
1. An immersed ultrafiltration membrane water purification system is characterized in that a raw water tank is connected with a self-cleaning filter through a pipeline provided with a water inlet pump, the self-cleaning filter is connected with a raw water inlet below an ultrafiltration membrane core pressure vessel through a water inlet pipeline sequentially provided with a water inlet valve and a water inlet pressure gauge, and a water outlet above the ultrafiltration membrane core pressure vessel is connected with a water production tank through a water production pipeline sequentially provided with a water production pressure gauge, a water production flow meter and a water production valve;
the air storage tank is connected with an aeration port below the ultrafiltration membrane core pressure container through an air passage provided with an air inlet valve, an air outlet at the top of the ultrafiltration membrane core pressure container is connected with a return pipeline provided with an upper discharge valve, and a discharge port at the bottom of the ultrafiltration membrane core pressure container is connected with a drain pipeline provided with a lower discharge valve; the return pipeline is connected with the raw water tank through a return branch provided with a return pressure gauge, a return valve and a return flowmeter;
a backwashing pipeline which is sequentially provided with a backwashing pump, a backwashing pressure gauge, a backwashing flow meter and a backwashing valve is connected with a water production pipeline below the backwashing tank; the water production pipeline is connected with a backwashing tank through a pipeline provided with a backwashing water replenishing valve;
the cleaning pump is respectively connected with the cleaning tank and a dosing pipeline provided with a cleaning medicine inlet valve, the dosing pipeline is connected with the water inlet pipeline and enters cleaning water of the membrane assembly, the return pipeline is connected with the cleaning tank through a cleaning return valve cleaning branch, and the water production pipeline is connected with the cleaning tank through a water production return valve pipeline.
2. The immersed ultrafiltration membrane water purification system as claimed in claim 1, wherein the hollow fiber ultrafiltration membrane core is installed in an ultrafiltration membrane core pressure vessel and sealed with the ultrafiltration membrane core pressure vessel through a sealing ring of the hollow fiber ultrafiltration membrane core, the ultrafiltration membrane core pressure vessel body is composed of a filter cartridge, a detachable upper cover and a support mechanism, a sealing and fixing structure, a water production pipeline, a water inlet pipeline, an upper discharge pipeline, a lower discharge pipeline, an exhaust system and an air distribution system are arranged in the pressure vessel body, the filter cartridge is used as the pressure vessel body, the bottom of the pressure vessel body is provided with the support mechanism, the upper end of the pressure vessel body is provided with the detachable upper cover, the sealing ring is arranged between the filter cartridge and the detachable upper cover to ensure the sealing property in the vessel, the filter cartridge and the detachable upper cover are connected and fixed through bolts and nuts, the bottom of, the water inlet pipeline is communicated with the interior of the filter cylinder; the bottom of the filter cylinder is provided with a lower row of pipelines which are communicated with the inside of the filter cylinder; an upper row of pipelines are arranged at the position close to the upper end of the side part of the filter cylinder; a water production pipeline is arranged at the position close to the upper end of the side part of the filter cylinder and is guided by a pipeline in the filter core; the lower part of the filter cylinder is provided with an air distribution system, the top of the detachable upper cover is provided with an exhaust system, and the positive flushing link of the whole device in the operation process needs to discharge the air in the container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921966161.0U CN211570182U (en) | 2019-11-14 | 2019-11-14 | Immersed ultrafiltration membrane water purification system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921966161.0U CN211570182U (en) | 2019-11-14 | 2019-11-14 | Immersed ultrafiltration membrane water purification system |
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| CN211570182U true CN211570182U (en) | 2020-09-25 |
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| CN201921966161.0U Active CN211570182U (en) | 2019-11-14 | 2019-11-14 | Immersed ultrafiltration membrane water purification system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110921779A (en) * | 2019-11-14 | 2020-03-27 | 天津膜天膜科技股份有限公司 | Immersed ultrafiltration membrane water purification system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110921779A (en) * | 2019-11-14 | 2020-03-27 | 天津膜天膜科技股份有限公司 | Immersed ultrafiltration membrane water purification system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: No.60, 11th Street, Binhai New Area Development Zone, Tianjin 300457 Patentee after: Tianjin Motimo Membrane Technology Co.,Ltd. Address before: 300457 No.60, 11th Street, development zone, Xiqing District, Tianjin Patentee before: Tianjin Motimo Membrane Technology Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder |