CN102583834A - Perforated-plate-water-cap activated carbon filter with activated carbon powder leakage prevention function - Google Patents

Perforated-plate-water-cap activated carbon filter with activated carbon powder leakage prevention function Download PDF

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Publication number
CN102583834A
CN102583834A CN2012100622477A CN201210062247A CN102583834A CN 102583834 A CN102583834 A CN 102583834A CN 2012100622477 A CN2012100622477 A CN 2012100622477A CN 201210062247 A CN201210062247 A CN 201210062247A CN 102583834 A CN102583834 A CN 102583834A
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CN
China
Prior art keywords
water
activated carbon
filter
cap
porous plate
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Pending
Application number
CN2012100622477A
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Chinese (zh)
Inventor
李宗丽
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Shanghai Intelligence Power Engineering Co Ltd
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Shanghai Intelligence Power Engineering Co Ltd
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Application filed by Shanghai Intelligence Power Engineering Co Ltd filed Critical Shanghai Intelligence Power Engineering Co Ltd
Priority to CN2012100622477A priority Critical patent/CN102583834A/en
Publication of CN102583834A publication Critical patent/CN102583834A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a perforated-plate-water-cap activated carbon filter with an activated carbon powder leakage prevention function. The perforated-plate-water-cap activated carbon filter comprises a filter body which is internally provided with a perforated plate water cap structure and an activated carbon layer; a water inlet, a water outlet, a washing waterspout, a backwashing waterspout and a backwashing water inlet are arranged on the filter body; and a fine sand layer is arranged between the activated carbon layer and the perforated plate water cap structure. According to the invention, as the fine sand layer is arranged between the activated carbon layer and the perforated plate water cap structure, the phenomenon of powdered activated carbon leakage during the use of the activated carbon filter is avoided.

Description

Porous plate water cap activated charcoal filter with anti-active carbon powder leakage function
Technical field
The present invention relates to water-treatment technology field, relate in particular to a kind of porous plate water cap activated charcoal filter with anti-active carbon powder leakage function.
Background technology
At present, water resources is deficient day by day, and the water quality deterioration phenomenon is on the rise, and especially serious is mikrobe and organism is to the pollution of water quality.In recent years, in service at the Subcritical Units in fuel-burning power plant, supercritical unit, ultra supercritical unit, total organic carbon TOC has caused people's great attention in the boiler feedwater to the influence of boiler and steam turbine.Therefore, in GB/T 12145-2008 " thermal power generation unit and apparatus of steam power plants steam quality " the boiler feedwater quality standard TOC index has been done strict qualification.
Make the TOC index reach standard, just must remove mikrobe and the organism in the water.Removal mikrobe and organic method mainly contain biochemical process, chemical oxidization method and physical adsorption and hold back method at present.Biochemical process mainly is that mikrobe is become organism, water and carbonic acid gas than small molecules with the larger molecular organics biochemical degradation, reduces total phosphorus and ammonia-nitrogen content.Chemical oxidization method can only sterilization with the larger molecular organics oxygenolysis is become small organic molecule.More than two kinds of methods all can not satisfy the qualification of Boiler water Feeding System system subsequent processing device (like r-o-, ion-exchanger) to entering organic matter of water content, more can not meet the restriction of boiler feedwater to total organic carbon TOC content.
Remove small organic molecule and mainly hold back method by physical adsorption at present, method equipment is held back in the physical adsorption of present sophisticated removal small organic molecule has ultrafiltration, weak acid positive resin interchanger and activated charcoal filter.
Wherein,, can only remove colloid and macromole dissolved organic matter, can't remove the small organic molecule of The dissolved because ultrafiltration apparatus receives the restriction of fenestra size.Though a little less than positive resins exchange device can remove the small organic molecule of The dissolved, the back recovery of losing efficacy needed soda acid, can pollute environment, and the unusual complicacy of its operation and control, auxiliary water ratio is big, cost of investment is also than higher.
Thereby, remove at present that The dissolved small organic molecule aspect is employed at most, the best equipment of treatment effect is activated charcoal filter.Activated charcoal filter not only can be removed the The dissolved small organic molecule, can also remove clear water through contained chlorine residue after the oxide treatment, can for follow-up Boiler water Feeding System equipment (like r-o-, ion-exchanger) qualified influent quality be provided effectively.But activated charcoal filter can contain a certain amount of small particle powder gac at initial operating stage (after the backwash) with in the for some time after changing filtrate in the water outlet.After these small particle powder gacs get into reverse osmosis unit; Can cause the dirt of reverse osmosis membrane passage stifled, negative issues such as the rising of working pressure, producing water ratio descend, the pressure drop rising of system, membrane flux reduction, its destruction to reverse osmosis membrane can't use conventional method to recover.If the small particle powder gac gets into ion-exchanger, also can stop up the adsorption hole of exchange resin, the exchange capacity of ion-exchanger is descended, shorten the cycle of operation, cause ion-exchanger backwash and regeneration frequent, increase soda acid consumption and self water consumption.The major cause that above-mentioned condition occurs is, the discharging device of activated charcoal filter is generally porous plate water cap at present, or quartz sand thickness, and its space is bigger, causes gac to leak easily.
Concrete as, the slit of activated charcoal filter porous plate water cap is generally 0.25 millimeter, tiny active carbon powder can pass through this slit smoothly.If the water cap slit of porous plate is reduced, then the water flow of activated charcoal filter can reduce, and does not reach the requirement of exerting oneself.
Therefore, those skilled in the art is devoted to develop a kind of porous plate water cap activated charcoal filter with anti-active carbon powder leakage function.
Summary of the invention
Because the above-mentioned defective of prior art, technical problem to be solved by this invention provides a kind of porous plate water cap activated charcoal filter with anti-active carbon powder leakage function.
For realizing above-mentioned purpose, the invention provides a kind of porous plate water cap activated charcoal filter with anti-active carbon powder leakage function, comprise filter body, be provided with porous plate water cap structure and active carbon layer in the said filter body; Also be provided with water inlet, water outlet on the said filter body, just wash water port, backwash water port, backwash water inlet; Be provided with fine sand layer between said active carbon layer and the said porous plate water cap structure.
Preferably, the fine sand particle diameter of said fine sand layer is between the 0.3-0.5 millimeter.
Preferably, the loading height of said fine sand layer is between the 400-600 millimeter.
Preferably, said filter body is stainless material or glass-reinforced plastic material or carbon steel material.
Preferably, said water cap is ABS material or stainless material.
The invention has the beneficial effects as follows:
Porous plate water cap activated charcoal filter with anti-active carbon powder leakage function of the present invention; Owing between active carbon layer and porous plate water cap structure, be provided with fine sand layer; Solved the phenomenon that activated charcoal filter in use leaks Powdered Activated Carbon, its principle is that mechanical grading is held back.
Because the particle diameter of the fine sand that is loaded is less and particle is more even; Loading height is lower, and after accumulation was filled into strainer, intergranular space was little and many; Huge surface-area is arranged; Resistance to current is also little, under the situation that need not increase influent pressure force-summing device Inlet and outlet water pressure reduction, just can solve the activated charcoal filter water outlet and carry the carbon dust problem.Simultaneously can get better water distribution performance, shorten just washing the time of activated charcoal filter, obtain better water-saving result.
Below will combine accompanying drawing that the technique effect of design of the present invention, concrete structure and generation is described further, to understand the object of the invention, characteristic and effect fully.
Description of drawings
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is the broken section structural representation of Fig. 1.
Embodiment
Like Fig. 1, shown in Figure 2, porous plate water cap activated charcoal filter one specific embodiment with anti-active carbon powder leakage function of the present invention comprises filter body 1, and filter body 1 can be stainless material, or glass-reinforced plastic material, or carbon steel material etc.
The structure of filter body 1 is identical with prior art constructions, for porous plate water cap strainer, must be provided with active carbon layer 11 and porous plate water cap structure 12, and wherein the water cap can be ABS material or stainless material.
In addition, according to concrete needs, ground identical with prior art also is provided with water inlet 14, water outlet 15, just washes water port 16, backwash water port 17, backwash water inlet 18 etc. on the filter body 1.
Special feature of the present invention is, between active carbon layer 11 and porous plate water cap structure 12, is provided with fine sand layer 13.Fine sand particle diameter in the fine sand layer 13 is at the 0.3-0.5 millimeter, and the loading height effect that anti-active carbon powder leaks between the 400-600 millimeter time be the best.
In activated charcoal filter initial operating stage (after the backwash), the powder activity powdered carbon is retained in the surface and space of fine sand layer 13, thereby has stoped spilling of carbon dust along with current get into fine sand layer 13.Along with the accumulation of carbon dust, can form the fine and close permeable filtering layer of one deck on fine sand layer 13 surfaces.In the process that chlorine residue is removed, because the chemical reaction (the continuous loss of gac) of C+CL2+2H2O-4HCL+CO2 takes place, macrobead becomes the gac of small particle powder gradually, and this permeable filtering layer can be held back active carbon powder better.
On the other hand, the Powdered Activated Carbon that is trapped still has the function of removing chlorine residue, and they are that activated charcoal filter is removed chlorine residue and organic last line of defense, can further reduce water outlet chlorine residue and organism.
When the activated charcoal filter backwash; The Powdered Activated Carbon that fine sand layer 13 is held back is taken away by the backwash water flushing, and after the backwash end, because the proportion specific activity charcoal of fine sand is big; Land in the below of carbon leaching material after the waterpower screening, equipment can regain clean fine sand layer.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art need not creative work and just can design according to the present invention make many modifications and variation.Therefore, all technician in the art all should be in the determined protection domain by claims under this invention's idea on the basis of existing technology through the available technical scheme of logical analysis, reasoning, or a limited experiment.

Claims (5)

1. the porous plate water cap activated charcoal filter with anti-active carbon powder leakage function comprises filter body, is provided with porous plate water cap structure and active carbon layer in the said filter body; Also be provided with water inlet, water outlet on the said filter body, just wash water port, backwash water port, backwash water inlet; It is characterized in that: be provided with fine sand layer between said active carbon layer and the said porous plate water cap structure.
2. the porous plate water cap activated charcoal filter with anti-active carbon powder leakage function as claimed in claim 1, it is characterized in that: the fine sand particle diameter of said fine sand layer is between the 0.3-0.5 millimeter.
3. the porous plate water cap activated charcoal filter with anti-active carbon powder leakage function as claimed in claim 1, it is characterized in that: the loading height of said fine sand layer is between the 400-600 millimeter.
4. the porous plate water cap activated charcoal filter with anti-active carbon powder leakage function as claimed in claim 1, it is characterized in that: said filter body is stainless material or glass-reinforced plastic material or carbon steel material.
5. the porous plate water cap activated charcoal filter with anti-active carbon powder leakage function as claimed in claim 1, it is characterized in that: said water cap is ABS material or stainless material.
CN2012100622477A 2012-03-09 2012-03-09 Perforated-plate-water-cap activated carbon filter with activated carbon powder leakage prevention function Pending CN102583834A (en)

Priority Applications (1)

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CN2012100622477A CN102583834A (en) 2012-03-09 2012-03-09 Perforated-plate-water-cap activated carbon filter with activated carbon powder leakage prevention function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012100622477A CN102583834A (en) 2012-03-09 2012-03-09 Perforated-plate-water-cap activated carbon filter with activated carbon powder leakage prevention function

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CN102583834A true CN102583834A (en) 2012-07-18

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103768840A (en) * 2013-12-19 2014-05-07 柳州正菱集团有限公司 Activated carbon filtering device
CN112717537A (en) * 2020-10-13 2021-04-30 董正中 Decolorizing device and method used in process of producing vehicle urea

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200998642Y (en) * 2007-01-25 2008-01-02 高德耀 Double-chamber filter
KR100843576B1 (en) * 2007-03-15 2008-07-03 영성산업 주식회사 Activated carbon filter shape body for water purifier
CN201572552U (en) * 2009-11-17 2010-09-08 上海丰信环保科技有限公司 Bottom leakproof structure of activated carbon filter
CN201969391U (en) * 2011-02-16 2011-09-14 江苏长源环保设备有限公司 Variable cross-section activated carbon filter
CN202438186U (en) * 2012-03-09 2012-09-19 上海艾能电力工程有限公司 Activated carbon filter having perforated plate water hat with function of preventing leakage of activated carbon powder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200998642Y (en) * 2007-01-25 2008-01-02 高德耀 Double-chamber filter
KR100843576B1 (en) * 2007-03-15 2008-07-03 영성산업 주식회사 Activated carbon filter shape body for water purifier
CN201572552U (en) * 2009-11-17 2010-09-08 上海丰信环保科技有限公司 Bottom leakproof structure of activated carbon filter
CN201969391U (en) * 2011-02-16 2011-09-14 江苏长源环保设备有限公司 Variable cross-section activated carbon filter
CN202438186U (en) * 2012-03-09 2012-09-19 上海艾能电力工程有限公司 Activated carbon filter having perforated plate water hat with function of preventing leakage of activated carbon powder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103768840A (en) * 2013-12-19 2014-05-07 柳州正菱集团有限公司 Activated carbon filtering device
CN112717537A (en) * 2020-10-13 2021-04-30 董正中 Decolorizing device and method used in process of producing vehicle urea

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Application publication date: 20120718

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