CN218741308U - Sectional type automatic back-cleaning ultrafiltration equipment - Google Patents
Sectional type automatic back-cleaning ultrafiltration equipment Download PDFInfo
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- CN218741308U CN218741308U CN202222963926.3U CN202222963926U CN218741308U CN 218741308 U CN218741308 U CN 218741308U CN 202222963926 U CN202222963926 U CN 202222963926U CN 218741308 U CN218741308 U CN 218741308U
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- backwashing
- ultrafiltration
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- ultrafiltration device
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Abstract
The utility model discloses a sectional type automatic backwashing ultrafiltration device. The automatic reverse cleaning ultrafiltration device comprises a silk screen filter, a sectional type automatic reverse cleaning ultrafiltration device and an ultrafiltration water tank; the screen filter is communicated with the sectional type automatic backwashing ultrafiltration device through a water inlet pipe, the sectional type automatic backwashing ultrafiltration device is communicated with the ultrafiltration water tank through a backwashing discharge pipe, a backwashing water inlet pipe is also arranged between the ultrafiltration water tank and the sectional type automatic backwashing ultrafiltration device, and a backwashing water pump is arranged on the backwashing water inlet pipe; divide into ten multiunit of a set of with many milipore filter subassemblies in the automatic backwashing ultrafiltration device of sectional type, adopt the mode of side by side to arrange, the membrane heap sharing inlet tube of multiunit milipore filter group and backwashing discharge pipe, the membrane heap of every milipore filter group of group all is equipped with backwashing water inlet branch pipe, set up the pneumatic valve on the backwashing water inlet branch pipe. The utility model provides the high cleaning efficiency of milipore filter slows down the dirty stifled of accumulation of membrane, prolongs the life of membrane.
Description
Technical Field
The utility model belongs to the technical field of the ultrafiltration apparatus, concretely relates to sectional type automatic backwashing ultrafiltration apparatus.
Background
At present, ultrafiltration technology is widely used in water treatment equipment and processes, such as pretreatment of reverse osmosis, town water supply treatment, condensate water recycling, water for food and beverage processing, drinking water, advanced wastewater recycling, concentration treatment in food and dairy industries, and the like.
The number of membrane components of a single set of ultrafiltration device is dozens of less, and the number of membrane components is hundreds of more. At present, the ultrafiltration device generally adopts 'tree branch shape' water distribution and water distribution, so that the condition that each membrane component is uneven in water distribution and forms dirt blockage is not uniform, and each membrane component can not be effectively and fully cleaned when back cleaning is carried out, so that a cleaning dead angle is formed easily, the flux of the membrane can not be completely recovered, and the service life of the ultrafiltration membrane is seriously influenced. Therefore, the cleaning equipment capable of solving the problems of nonuniform ultrafiltration cleaning and cleaning dead corners is urgently needed, and the manual operation amount is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a sectional type automatic backwashing ultrafiltration device. The problem of current ultrafiltration device wash have the dead angle and membrane flux resumes not good is solved.
The utility model adopts the technical proposal that: a sectional type automatic back-washing ultrafiltration device comprises a silk screen filter, a sectional type automatic back-washing ultrafiltration device and an ultrafiltration water tank; the sectional type automatic backwashing ultrafiltration device is positioned at the rear end of the screen filter, the ultrafiltration water tank is positioned at the rear end of the sectional type automatic backwashing ultrafiltration device, the screen filter is communicated with the sectional type automatic backwashing ultrafiltration device through a water inlet pipe, the sectional type automatic backwashing ultrafiltration device is communicated with the ultrafiltration water tank through a backwashing discharge pipe, a backwashing water inlet pipe is also arranged between the ultrafiltration water tank and the sectional type automatic backwashing ultrafiltration device, and a backwashing water pump is arranged on the backwashing water inlet pipe; divide into ten a set of multiunit with many milipore filter subassemblies in the automatic anti-ultrafiltration device that washs of sectional type, adopt the mode of side by side to arrange, the membrane heap sharing inlet tube of multiunit milipore filter group and anti-washing delivery pipe, the membrane heap of every milipore filter group of group all is equipped with anti-washing water inlet branch pipe, set up the pneumatic valve on the anti-washing water inlet branch pipe, ensure to cut off with other groups automatically, anti-washing water inlet branch pipe end sets up air relief valve, can not terminal formation atmoseal when guaranteeing to anti-wash. And performing back cleaning on the single group every time, namely opening the pneumatic valve of the group, closing the pneumatic valves of other groups, realizing the back cleaning of the membrane stack, and automatically switching to the next group after the cleaning is finished.
In a further preferred configuration, the wire mesh filter is a 100 μm wire mesh filter.
The raw water passes through a 100-micron wire mesh filter, larger particle impurities are intercepted, and solid particles are prevented from entering an ultrafiltration system to block or scratch an ultrafiltration membrane wire.
In a further preferred structure, a bactericide adding device is arranged in the sectional type automatic backwashing ultrafiltration device.
The purpose of adding the bactericide is to kill bacteria on the surface of the ultrafiltration membrane, prevent the bacteria from propagating on the surface of the ultrafiltration membrane in a large quantity and ensure that the ultrafiltration flux is attenuated quickly.
In a further preferred structure, an acid adding device is arranged in the sectional type automatic backwashing ultrafiltration device.
The purpose of adding acid is to decompose inorganic salt scale such as calcium carbonate, magnesium carbonate, ferric hydroxide and the like adhered on the surface of the ultrafiltration membrane and prevent inorganic salt from blocking membrane pores to cause the reduction of membrane flux.
In a further preferred structure, an alkali adding device is arranged in the sectional type automatic backwashing ultrafiltration device.
The purpose of adding alkali is to decompose organic matters and colloids adhered to the surface of the ultrafiltration membrane and prevent the organic matters and the colloids from blocking membrane pores to reduce membrane flux.
The utility model discloses under the condition that does not increase the energy consumption, realize the anti-washing in no dead angle of every milipore filter subassembly.
The utility model provides the high cleaning efficiency of milipore filter slows down the dirty stifled of accumulation of membrane, prolongs the life of membrane, saves anti-washing water, saves anti-washing energy consumption.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a process flow diagram of the present invention;
fig. 3 is a schematic view of the present invention.
Detailed Description
The invention will be further described in detail with reference to the drawings and the following detailed description, which are not intended to limit the invention.
As shown in fig. 1 and 2, the present invention comprises a screen filter 1, a sectional automatic backwashing ultrafiltration device 2 and an ultrafiltration water tank 3 in sequence; the sectional type automatic back-washing ultrafiltration device 2 is positioned at the rear end of the net filter 1, the ultrafiltration water tank 3 is positioned at the rear end of the sectional type automatic back-washing ultrafiltration device 2, the net filter 1 is communicated with the sectional type automatic back-washing ultrafiltration device 2 through a water inlet pipe A, the sectional type automatic back-washing ultrafiltration device 2 is communicated with the ultrafiltration water tank 3 through a back-washing discharge pipe B, a back-washing water inlet pipe C is also arranged between the ultrafiltration water tank 3 and the sectional type automatic back-washing ultrafiltration device 2, and a back-washing water pump 4 is arranged on the back-washing water inlet pipe C; divide into ten a set of multiunit with many milipore filter subassemblies in the automatic backwashing ultrafiltration device of sectional type 2, adopt the mode of side by side to arrange, the membrane heap sharing inlet tube A and the backwashing discharge pipe B of multiunit milipore filter group, the membrane heap of every milipore filter group of group all is equipped with backwashing water inlet branch pipe C1, set up the pneumatic valve on the backwashing water inlet branch pipe C1, ensure to cut off with other groups automatically, backwashing water inlet branch pipe C1 end sets up automatic exhaust valve, can not end formation atmoseal when guaranteeing backwashing. And performing back cleaning on the single group every time, namely opening the pneumatic valve of the group, closing the pneumatic valves of other groups to realize the back cleaning of the membrane stack, and automatically switching to the next group after the cleaning is finished.
The wire mesh filter 1 is a 100 μm wire mesh filter.
A bactericide adding device is arranged in the sectional type automatic back-cleaning ultrafiltration device 2.
An acid adding device is arranged in the sectional type automatic backwashing ultrafiltration device 2.
An alkali adding device is arranged in the sectional type automatic back-cleaning ultrafiltration device 2.
Example (b): the sectional type automatic backwashing ultrafiltration device divides 40 ultrafiltration membrane components into 4 groups (10 ultrafiltration membrane components/group) which are arranged in parallel, 4 groups of membrane stacks share a water inlet pipe and a backwashing discharge pipe, and backwashing water inlet branch pipes of each group of membrane stacks are provided with pneumatic valves to ensure that the membrane stacks can be automatically isolated from other groups; and the tail end of the back-washing water inlet branch pipe is provided with an automatic exhaust valve, so that the tail end is prevented from forming an air seal during back washing. And (4) carrying out reverse cleaning on the single group every time, namely, opening the pneumatic valve group and closing other pneumatic valves to realize the reverse cleaning of the membrane stack, and automatically switching to the next group after the cleaning is finished.
The ultrafiltration working principle is as follows: a sieving process related to the pore size of a membrane, which takes the pressure difference between two sides of the membrane as a driving force, takes an ultrafiltration membrane as a filtering medium, under a certain pressure, when a stock solution flows through the surface of the membrane, a plurality of fine micropores densely distributed on the surface of the ultrafiltration membrane only allow water and small molecular substances to pass through to form a permeate, and substances in the stock solution, the volume of which is larger than the micropore size on the surface of the membrane, are intercepted on the liquid inlet side of the membrane to form a concentrated solution, so that the purposes of purifying, separating and concentrating the stock solution are realized, and the reference figure 3 shows that the raw solution is concentrated.
The pore size of the ultrafiltration membrane is approximately in the range of 0.002-0.1 micron. Dissolved substances and substances with a smaller pore size than the membrane will permeate the membrane as permeate, and substances that do not permeate the membrane will be slowly concentrated in the effluent. The produced water (permeate) will therefore contain water, ions, and small molecular weight species, while colloidal species, particles, bacteria, germs, and protozoa will remove the coating.
The utility model discloses be applied to the more ultrafiltration device to membrane module number (be greater than 30).
The membrane flux of each membrane component is restored to 99 percent after backwashing; after multiple times of cleaning, the turbidity of the produced water of each membrane module is less than 0.1NTU; the flux of each membrane module can be recovered to 99% after the backwashing is finished, the turbidity of the produced water can be less than 0.1NTU, and meanwhile, the full-automatic operation and backwashing can be realized effectively and stably.
Those not described in detail in this specification are within the skill of the art.
Claims (5)
1. The utility model provides a sectional type self-cleaning ultrafiltration apparatus which characterized in that: comprises a silk screen filter (1), a sectional type automatic backwashing ultrafiltration device (2) and an ultrafiltration water tank (3); the sectional type automatic backwashing ultrafiltration device (2) is positioned at the rear end of the net filter (1), the ultrafiltration water tank (3) is positioned at the rear end of the sectional type automatic backwashing ultrafiltration device (2), the silk screen filter (1) is communicated with the sectional type automatic backwashing ultrafiltration device (2) through a water inlet pipe (A), the sectional type automatic backwashing ultrafiltration device (2) is communicated with the ultrafiltration water tank (3) through a backwashing discharge pipe (B), a backwashing water inlet pipe (C) is also arranged between the ultrafiltration water tank (3) and the sectional type automatic backwashing ultrafiltration device (2), and a backwashing water pump (4) is arranged on the backwashing water inlet pipe (C); divide into ten a set of multiunit with many milipore filter subassemblies in sectional type automatic back washing ultrafiltration device (2), adopt the mode of side by side to arrange, inlet tube (A) and back washing delivery pipe (B) are shared to the membrane stack of multiunit milipore filter group, and the membrane stack of every milipore filter group of group all is equipped with back washing inlet branch pipe (C1), set up the pneumatic valve on back washing inlet branch pipe (C1), back washing inlet branch pipe (C1) end sets up automatic exhaust valve.
2. The segmented automatic backwashing ultrafiltration device of claim 1, wherein: the wire mesh filter (1) is a 100 μm wire mesh filter.
3. The segmented automatic backwashing ultrafiltration device of claim 1, wherein: a bactericide adding device is arranged in the sectional type automatic back-cleaning ultrafiltration device (2).
4. The segmented automatic backwashing ultrafiltration device of claim 1, wherein: an acid adding device is arranged in the sectional type automatic backwashing ultrafiltration device (2).
5. The segmented automatic back-washing ultrafiltration apparatus of claim 1, wherein: an alkali adding device is arranged in the sectional type automatic back-cleaning ultrafiltration device (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222963926.3U CN218741308U (en) | 2022-11-04 | 2022-11-04 | Sectional type automatic back-cleaning ultrafiltration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222963926.3U CN218741308U (en) | 2022-11-04 | 2022-11-04 | Sectional type automatic back-cleaning ultrafiltration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218741308U true CN218741308U (en) | 2023-03-28 |
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ID=85647147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222963926.3U Active CN218741308U (en) | 2022-11-04 | 2022-11-04 | Sectional type automatic back-cleaning ultrafiltration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218741308U (en) |
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2022
- 2022-11-04 CN CN202222963926.3U patent/CN218741308U/en active Active
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