CN106731120B - A kind of filter stack chip architecture and laminated filter - Google Patents
A kind of filter stack chip architecture and laminated filter Download PDFInfo
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- CN106731120B CN106731120B CN201611040121.4A CN201611040121A CN106731120B CN 106731120 B CN106731120 B CN 106731120B CN 201611040121 A CN201611040121 A CN 201611040121A CN 106731120 B CN106731120 B CN 106731120B
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- lamination
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- runner
- stack chip
- chip architecture
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- 238000003475 lamination Methods 0.000 claims abstract description 66
- 229920002101 Chitin Polymers 0.000 claims abstract description 9
- 239000000835 fiber Substances 0.000 claims abstract description 9
- 239000012530 fluid Substances 0.000 claims description 12
- 244000063299 Bacillus subtilis Species 0.000 claims description 7
- 235000014469 Bacillus subtilis Nutrition 0.000 claims description 7
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 229910052785 arsenic Inorganic materials 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- -1 polyethylene Polymers 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000001914 filtration Methods 0.000 abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 244000005700 microbiome Species 0.000 abstract description 5
- 239000004576 sand Substances 0.000 abstract description 5
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 4
- 230000001954 sterilising effect Effects 0.000 abstract description 2
- 239000000725 suspension Substances 0.000 abstract description 2
- 230000002262 irrigation Effects 0.000 description 9
- 238000003973 irrigation Methods 0.000 description 9
- 238000013461 design Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000011160 research Methods 0.000 description 6
- 239000012535 impurity Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000007774 longterm Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000013049 sediment Substances 0.000 description 4
- 239000004902 Softening Agent Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 229940059082 douche Drugs 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000003621 irrigation water Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920001661 Chitosan Polymers 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002068 microbial inoculum Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000012913 prioritisation Methods 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/44—Edge filtering elements, i.e. using contiguous impervious surfaces
- B01D29/46—Edge filtering elements, i.e. using contiguous impervious surfaces of flat, stacked bodies
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
Abstract
The present invention provides a kind of filter stack chip architecture, the structure includes the lamination of annular, the lamination is equipped with the runner that section is in Pentagram shape, and the cross sectional shape of the runner is the Pentagram shape using the intermediate one third part in koch fractal curve second order figure.A kind of laminated filter is also proposed, including multiple above-mentioned filter stack chip architectures.The filter efficiency of filter can be improved in filter lamination proposed by the present invention, effectively provides the settling zone of more sand grains, and use scope is wide；Lamination section provides bigger area of passage under the premise of guaranteeing original filtering accuracy, pass through same volume water under the premise of its caused by head loss be lower than traditional lamination to a certain extent；The present invention, using chitin fiber is arrived, condenses the microorganism of suspension, plays the role of biofiltration while physical filtering, have both disinfection and sterilization in the production of lamination.
Description
Technical field
The present invention relates to agricultural water-saving irrigation technical fields, especially with respect to a kind of filter stack chip architecture and stacked mistake
Filter.
Background technique
The shortage of water resource has become global problem, this problem is to grain security, economic security, Population safety etc.
A series of problem produces tremendous influence.Develop by long-term research, slight irrigation has become now universal irrigation side
The utilization of formula, this mode considerably reduces Water Consumption in Agriculture, but its requirement for water quality is more stringent.If
All kinds of impurity in irrigation water cannot be effectively removed, the quality of water can be seriously affected, cause the blocking of equipment at different levels, it is serious
It will cause the paralysis of entire irrigation system and scrap.Major impurity by taking the Hetao Irrigation District for quoting Huanghe water as an example, in diversion
It is silt, whether the filter efficiency of silt just becomes irrigation system successfully crucial.By the performance test research of filter
It was found that several filters have certain limitation for the filtering of silt in existing irrigation system, main removal bulky grain
Silt, and the lesser floating type silt of partial size cannot be removed effectively.The filter efficiency of laminated filter is one and urgently solves
Certainly the problem of, and lamination is the core of laminated filter, therefore the most effectual way that laminated filter is transformed is exactly to lamination
It is transformed.
Since applying for laminated filter is relatively broad in middle-size and small-size peasant household, a large amount of scientific research scholar attempts from many aspects
The efficiency of filter is solved, although the research expansion on a large scale not yet for internal laminations, also achieves one
A little achievements.Also there are many experts and scholars to propose many prioritization schemes for lamination at present, such as: Control in Beijing engineering research
Institute Li Yonghua etc. (application publication number: CN104888511A) disclose it is a kind of change laminate shape design, the design pass through by
Traditional disc type lamination transform the outer rim side length that petal type lamination is effectively increased lamination as, increases runner at the same time
Quantity, the region of sediment settlement is increased to a certain extent, since the structure of its runner is relatively simple, although increasing
Runner quantity does not still have clear improvement to the efficiency and precision of filtering.
For another example China Water Resources & Hydropower Science Research Institute Wu Wen bravely equal (application publication number: CN104785003 A) discloses one
Kind novel equal cross section of fluid channel filter lamination, the runner of circular ring shape sheet body is semi-circular runner, and inside and outside cross section of fluid channel is partly
Diameter is identical, overcomes traditional lamination energy consumption height in a sense and is not easy the problem of cleaning, but filter efficiency is lower.
Summary of the invention
The present invention provides a kind of filter stack chip architecture for overcoming the above problem or at least being partially solved the above problem
And laminated filter, filter efficiency can be effectively improved, head loss brought by filtering is reduced.
According to an aspect of the present invention, a kind of filter stack chip architecture is provided, which includes the lamination of annular, described
Lamination is equipped with the runner that section is in Pentagram shape.
Further, the cross sectional shape of the runner is using the intermediate one third portion in koch fractal curve second order figure
The Pentagram shape divided.
Further, each wedge angle of the cross section of fluid channel carries out rounded corner.The wedge angle of the cross section of fluid channel uses rounding
The design at angle, the runner of accurate size out easy to process；In addition, the flushing when radian of fillet is conducive to improve backwash is imitated
Rate, and sharp corner easily stockpiles the impurity being difficult to clean.
Further, the outside sectional dimension of the runner is greater than the sectional dimension on the inside of it.The cross section of fluid channel of the lamination
It is gradually reduced from the outside to the inside according to the direction of filtering, reduces rule and follow linear equation rule.
Further, multiple identical runners are evenly equipped on the lamination.The trend of the runner is respectively with it in institute
The tangent line angle for stating edge on the outside of lamination is 67 °.
Further, the two sides up and down of the lamination are equipped with the runner.After multiple lamination superpositions, the upside of lower section lamination
The runner in face may be combined into a variety of different new runners from the runner of the downside of top lamination, improve filter efficiency.
Further, the ratio range of the internal diameter of the lamination and outer diameter be 0.75-0.8:1, the flow channel length be 20 (±
2)mm。
Further, the material of the lamination mainly includes chitin fiber and polyethylene.It further include that a small amount of plastics are cold-resistant
Softening agent and organo-arsenic.Wherein, chitin fiber accounts for 12.5%, and polyethylene accounts for 85.9%, it is also necessary to add 1.0% plastics it is resistance to
Cold softening agent and 0.6% organo-arsenic.
Further, it after the lamination is manufactured, is impregnated using bacillus subtilis solution.Bacillus subtilis is molten
Liquid concentration is preferably 108CFU/g, soaking time are preferably 24 hours.
According to another aspect of the present invention, the present invention also proposes a kind of laminated filter, including multiple above-mentioned mistakes
Filter lamination.
Based on the above-mentioned technical proposal, the invention has the following advantages:
(1) filter efficiency of filter can be improved in filter lamination proposed by the present invention, effective to provide more high concentration of sediment
The settling zone of particle, use scope are wide.
(2) the section design form of lamination of the invention provides bigger mistake under the premise of guaranteeing original filtering accuracy
Flow area, pass through same volume water under the premise of its caused by head loss be lower than traditional lamination to a certain extent.
(3) present invention condenses the microorganism of suspension, in physical filtering using chitin fiber is arrived in the production of lamination
Play the role of biofiltration simultaneously, has both disinfection and sterilization.And after lamination production, the present invention proposes to use
The method of bacillus subtilis solution dipping lamination enables filter not only can successfully filter physical impurity, while can also be effective
The generation for preventing biomembrane, enable it flow out water body with the backwash of filter, reduce the probability and significantly that biology interferes filtering
Reduce the blocking probability of douche.
Detailed description of the invention
Fig. 1 is the schematic diagram of koch curve construction second order figure；
Fig. 2 is the schematic diagram according to the cross section of fluid channel of the embodiment of the present invention；
Fig. 3 is the schematic diagram according to the lamination of the embodiment of the present invention；
Fig. 4 is enlarged diagram at A in Fig. 3；
Fig. 5 is enlarged diagram at B in Fig. 3；
Fig. 6 is the schematic diagram according to the laminated filter of the embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
The application is by transformation lamination runner to improve filter efficiency.By Fractal Theory Applications to laminated filter runner
Design in, be to need that the water source filtered provides the runner of area abundance and the expansion grains of sand sink using its complicated geometrical construction
Region drops, which can be improved the design conveyance capacity and filter efficiency of filter, effectively intercept tiny silt, together
When reduce the head loss of filter process to a certain extent.
The application is transformed the material of traditional lamination.Material used by traditional lamination is PP, PP have light weight,
Good toughness and the good advantage of chemical resistance, but its dimensional accuracy is low, rigidity is insufficient, it may appear that after-contraction phenomenon is held after demoulding
Aging easily occurs, becomes fragile or deforms.In long-term filtering, lamination can collide there are many sand grain and caused in runner
Portion's many " scar ", will cause the filter efficiency of filter to substantially reduce, will seriously it be made to scrap by long-term accumulation.This hair
It is bright to apply to chitin fiber and bacillus subtilis solution in the production of lamination, so that filter is carried out physics mistake simultaneously
Filter and biofiltration.
In one embodiment according to the application, with reference to Fig. 3, Fig. 4 and Fig. 5, a kind of filter stack chip architecture is provided, it should
Structure includes the lamination of annular, and the lamination is equipped with the runner that section is in Pentagram shape.
When the runner uses moderate-length, preferable filter effect can achieve.Too short runner will lead to filtering
It is insufficient；Too long runner will lead to the difficulty of filtering and backwash again.The present invention passes through the model to a variety of flow channel lengths
It carries out simulation and adaptability flow channel length range the most excellent is calculated, it is believed that it can be reduced while guaranteeing filter effect
Unnecessary head loss.
The cross sectional shape of the runner is using five of the intermediate one third part in koch fractal curve second order figure
Angle starriness.As shown in Fig. 2, the shape has good self-similarity nature, the complexity of lamination can be improved, improve filtering
Efficiency.
The major design theory of the cross sectional shape of the runner is unfolded based on the koch curve in point shape, koch curve
Main thought be: three sections, i.e. one line segment of trisection are cut at the left and right one third of straight line；It is equilateral with one again
Triangle substitutes the middle section that the first step divides trisection；And on each straight line, previous step, the structure of koch curve are repeated
It makes and can refer to Fig. 1.
Under the premise of the inscribed circle of guarantee lamination cross section of fluid channel is constant, the complexity in koch fractal curve construction section is utilized
Shape can achieve two purposes using its complicated self-similar structure:
First, increase area of section.Since head loss is the loss of fluid mechanical energy, before speed is constant
It puts, the ratio of the length and area of section that make runner is small as far as possible, to achieve the purpose that reduce head loss.When fractal curve
When introducing is effectively increased the area of overflow section, makes the water flow of identical speed in the same time, inflow-rate of water turbine is enabled to greatly increase,
Head loss is effectively reduced, so that filtering energy consumption is become smaller, filters more economical.
Second, improve the complexity of runner.Only there are three wedge angles for the runner of traditional lamination, and the filtering at base angle two is heavy
Shallow lake performance is poor, in the case where a large amount of silts pour in and is not suitable for the sedimentation of silt, and the section for utilizing fractal curve to carry out
Construction can effectively increase the low regime in runner, and koch curve selected by the present invention utilizes the self-similarity of triangle
Matter increases the wedge angle region on section twice, since the cardinal principle of laminated filter is to make sediment settlement using low regime
Achieve the effect that filtering, low speed wedge angle is taken in the invention increases to five by three, so that low regime area increases, by benefit
Base angle is ignored at lower two, and sediment settlement rate of the invention is approximately three times of traditional lamination runner.For the heavy of more grains of sand
Product provides possibility.
Each wedge angle of the cross section of fluid channel carries out rounded corner.The wedge angle of the cross section of fluid channel is set using rounded corner
Meter, the runner of accurate size out easy to process；In addition, the radian of fillet is conducive to improve flush efficiency when backwashing, and it is sharp
The impurity being difficult to clean easily is stockpiled at angle.
The outside sectional dimension of the runner is greater than the sectional dimension on the inside of it.The cross section of fluid channel of the lamination is according to filtering
Direction be gradually reduced from the outside to the inside, reduce rule follow linear equation rule.
Multiple identical runners are evenly equipped on the lamination.The trend of the runner is respectively with it outside the lamination
The tangent line angle of side edge is 67 °.
The two sides up and down of the lamination are equipped with the runner.After multiple lamination superpositions, the stream of the upper side of lower section lamination
Road may be combined into a variety of different new runners from the runner of the downside of top lamination, improve filter efficiency.
The internal diameter of the lamination and the ratio range of outer diameter are preferably 0.75-0.8:1, and the flow channel length is about 20
(±2)mm。
The material of the lamination mainly includes chitin fiber and polyethylene.Further include a small amount of plastics cold-resistant flexible agent and
Organo-arsenic.Wherein it is preferred to which chitin fiber accounts for 12.5%, polyethylene accounts for 85.9%, it is also necessary to add 1.0% plastics it is resistance to
Cold softening agent and 0.6% organo-arsenic.Chitin fiber is made by the method for wet drawing.
After the lamination is manufactured, impregnated using bacillus subtilis solution.Bacillus subtilis solution concentration
Preferably 108CFU/g, soaking time are preferably 24 hours, and the production of lamination is completed after immersion.
Laminate of the invention not only avoids a series of inconvenience brought by the pp used in traditional laminate,
And flocks suspend to a certain extent microorganism and the grains of sand, make it easier to precipitate and filtered, at the same time, moreover it is possible to
The aggregation for enough reaching microorganism processed prevents from forming large stretch of biomembrane, promotes the decomposition and dead effect of microorganism.
The slow release that mixed chitosan microbial inoculum can continue during the filtration process first in runner, in long-term filtering
The middle stroke for inhibiting biomembrane, the effective decomposition for accelerating biomembrane, enables it that can sufficiently peel off during the filtration process, with flushing
Water flow outflow filter together；Secondly the dipping that lamination is carried out using the drip irrigation of flora in irrigation water, can effectively be pressed down
The knot group of flora processed simultaneously enables it that can only settle and cannot be attached on lamination, can will be fallen off in backwash using this advantage
The blocking substance of sedimentation goes out filter.High degree is that the use of irrigation system offers convenience, and reduces douche and is held
The pressure received.
The present invention also proposes a kind of laminated filter, as shown in fig. 6, including multiple above-mentioned filter stack chip architectures.
Finally, the present processes are only preferable embodiment, it is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in protection of the invention
Within the scope of.
Claims (8)
1. a kind of filter stack chip architecture, which is characterized in that the lamination including annular, it is in five-pointed star that the lamination, which is equipped with section,
The runner of shape, the material of the lamination include chitin fiber, polyethylene, the agent of plastics cold-resistant flexible and organo-arsenic, described folded
After piece is manufactured, impregnated using bacillus subtilis solution.
2. a kind of filter stack chip architecture according to claim 1, which is characterized in that the cross sectional shape of the runner is to answer
With the Pentagram shape of the intermediate one third part in koch fractal curve second order figure.
3. a kind of filter stack chip architecture according to claim 1, which is characterized in that each wedge angle of the cross section of fluid channel
Carry out rounded corner.
4. a kind of filter stack chip architecture according to claim 1, which is characterized in that the outside sectional dimension of the runner
Greater than the sectional dimension on the inside of it.
5. a kind of filter stack chip architecture according to claim 1, which is characterized in that be evenly equipped with multiple phases on the lamination
The same runner, the tangent line angle of edge is 67 ° to the trend of the runner on the outside of the lamination with it respectively.
6. a kind of filter stack chip architecture according to claim 1, which is characterized in that the two sides up and down of the lamination are all provided with
There is the runner.
7. a kind of filter stack chip architecture according to claim 1, which is characterized in that the internal diameter of the lamination and outer diameter
Ratio range is 0.75-0.8:1.
8. a kind of laminated filter, including multiple filter stack chip architectures as described in claim 1-7.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611040121.4A CN106731120B (en) | 2016-11-11 | 2016-11-11 | A kind of filter stack chip architecture and laminated filter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611040121.4A CN106731120B (en) | 2016-11-11 | 2016-11-11 | A kind of filter stack chip architecture and laminated filter |
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| Publication Number | Publication Date |
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| CN106731120A CN106731120A (en) | 2017-05-31 |
| CN106731120B true CN106731120B (en) | 2019-05-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357854A (en) * | 2018-11-01 | 2019-02-19 | 中国农业大学 | A kind of integrated evaluating method of laminated filter performance |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107510973B (en) * | 2017-08-02 | 2019-08-09 | 中国农业大学 | A kind of filter lamination |
| CN108745214A (en) * | 2018-07-11 | 2018-11-06 | 江苏揽山环境科技股份有限公司 | A kind of reaction system for realizing the heat transfer of chaos state gas-liquid mass transfer |
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| CN109357854B (en) * | 2018-11-01 | 2020-05-12 | 中国农业大学 | Comprehensive evaluation method for performance of laminated filter |
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