CN109011875A - A kind of production method of filter and its filter core for heat exchanger - Google Patents
A kind of production method of filter and its filter core for heat exchanger Download PDFInfo
- Publication number
- CN109011875A CN109011875A CN201810959481.7A CN201810959481A CN109011875A CN 109011875 A CN109011875 A CN 109011875A CN 201810959481 A CN201810959481 A CN 201810959481A CN 109011875 A CN109011875 A CN 109011875A
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- China
- Prior art keywords
- filter core
- filter
- rose box
- active charcoal
- foam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0001—Making filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0028—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions provided with antibacterial or antifungal means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
- B01D46/64—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series arranged concentrically or coaxially
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention discloses a kind of filter for heat exchanger and its filter core production methods, filter includes Rose Box, thick effect filter core and secondary filter core, air intake and air outlet slit is respectively set in Rose Box both ends, thick effect filter core is installed in Rose Box close to air intake side, secondary filter core is installed in Rose Box close to air outlet slit side, the secondary filter core, as skeleton, is embedded and is formed through nano silver or the porous ceramsite filter material of nano-titanium dioxide adsorption treatment by foam active charcoal.Secondary filter core of the invention is by foam active charcoal as skeleton, foam active charcoal not only its with very big interior surface area ratio, and it is gone back while possessing the characterization of adsorption of active carbon, in addition the complicated identical tridimensional network in Carbon foam inside, just possess very high filtration as frame of filter element itself, the porous ceramsite filter material through nano silver or nano-titanium dioxide adsorption treatment has also been embedded in the present invention in it, has kept its filter efficiency high, moreover it is possible to antibacterial and sterilization.
Description
Technical field
The present invention relates to heat exchanger technology field, in particular to a kind of filter and its filter core system for heat exchanger
Make method.
Background technique
Heat exchanger is a kind of a kind of device that the outdoor gas of introduction and the indoor gas of discharge are carried out to heat exchange,
Such as when winter, the higher temperatures indoor gas that can use discharge heats the relatively low temperature chamber outer gas body of introduction, and summer then may be used
To introduce the heat of gas using the higher temperatures outside the indoor discharge indoor gas absorption chamber after air-conditioning temperature-reducing, drop its temperature
It is low.Generally all can first it be filtered the air during introduction, and filtering is typically all to use filter core.Existing filter core kind
Class is various, and in air contain many particles, particle species be roughly divided into charged particle, neutrophil granule (not charged particle) or
Person's organic granular and inorganic particle.Traditional filter core is obvious for the micronic dust filter effect of bulky grain, such as common spray fusing
Non-woven fabrics filter core, but it is bad for the adsorption effect of the neutrophil granules such as aerosol either organic fine particles, it is important to it is filtering
The micronic dust in air and bacterium have much all stayed on the filter paper of filter core afterwards, it is easy to cause bacteria breed.
Summary of the invention
It is good that the technical problem to be solved in the present invention is to provide a kind of filter effects, and has certain antibacterial and sterilizing function
Filter for heat exchanger.
The technical solution of the present invention is as follows:
A kind of filter for heat exchanger, including Rose Box, thick effect filter core and secondary filter core, the Rose Box both ends
Air intake and air outlet slit is respectively set, the thick effect filter core is installed in Rose Box close to air intake side, described secondary
Grade filter core is installed in Rose Box close to air outlet slit side, and the secondary filter core, as skeleton, embeds warp by foam active charcoal
Nano silver or the porous ceramsite filter material of nano-titanium dioxide adsorption treatment composition, the porous ceramsite filter material diameter are distributed in
Between 0.5-1mm.
Further, slightly effect filter core and secondary filter core pass through deck activity and are plugged in Rose Box, and on Rose Box top
The position installation activity sealing cover of portion corresponding thick effect filter core and secondary filter core, the movable sealing lid are fixed using fastening bolt.
Further, slightly effect filter core uses spray fusing non-woven fabrics fiber filter core.
The present invention also provides a kind of production methods of above-mentioned secondary filter core, comprising the following steps:
(1) by foam active charcoal according to Rose Box shape processing at foam active charcoal skeleton, thickness is between 5-8cm；
(2) by resin glue, deionized water, nano silver or nanometer titanium dioxide carbon particle, ceramic filter material according to weight ratio 1:
5:0.1:1 is uniformly mixed at 50-70 DEG C of temperature and mixed liquor is made, and wherein ceramic filter material diameter is distributed between 0.5-1mm；
(3) mixed liquor is intersected at pressure 0.3-0.5Mpa using high-pressure spray gun from foam active charcoal skeleton two sides and is sprayed
Enter, per unit area sprays the duration according to 1 centimetre of the every increase of foam active charcoal skeleton thickness time increase by two minutes；
(4) by foam active charcoal skeleton natural air drying after spraying, then surrounding encapsulates frame.
The invention has the beneficial effects that:
Secondary filter core of the invention, as skeleton, is embedded at through nano silver or nano-titanium dioxide absorption by foam active charcoal
The porous ceramsite filter material of reason forms, and not only it is with very big interior surface area ratio for foam active charcoal, but also it also while being gathered around
The characterization of adsorption of active charcoal, in addition complicated identical tridimensional network inside Carbon foam, is just gathered around as frame of filter element itself
There is very high filtration, in order to further increase its adsorption capacity more preferable especially for organic fine particles adsorption effect,
The porous ceramsite filter material through nano silver or nano-titanium dioxide adsorption treatment, porous ceramic grain have also been embedded in the present invention in it
Filtrate is mainly used for filtering non-organic particle, and nano silver or nano-titanium dioxide possess very efficient bactericidal effect,
Both it can prevent filter core itself from breeding bacterium during long-time service, and filtered air can also be sterilized and be sterilized
Effect.
Detailed description of the invention
Fig. 1 is schematic diagram of internal structure of the present invention；
Fig. 2 is appearance diagram of the present invention；
Fig. 3 is foam active carbon structure schematic diagram；
Fig. 4 is the foam active carbon structure enlarged diagram in Fig. 3.
In figure: 1- Rose Box, 11- air intake, 12- air outlet slit, 2- slightly imitate filter core, 3- grade filter core, 4- deck, 5-
Movable sealing lid, 51- fastening bolt.
Specific embodiment
Specific embodiments of the present invention will be further explained with reference to the accompanying drawing.It should be noted that for
The explanation of these embodiments is used to help understand the present invention, but and does not constitute a limitation of the invention.In addition, disclosed below
The each embodiment of the present invention involved in technical characteristic can be combined with each other as long as they do not conflict with each other.
It is as shown in Figs 1-4:
A kind of filter for heat exchanger, including Rose Box 1, thick effect filter core 2 and secondary filter core 3, the Rose Box 1
Air intake 11 and air outlet slit 12 is respectively set in both ends, and the thick effect filter core 2 is installed in Rose Box 1 close to air intake 11
Side, the secondary filter core 3 are installed in Rose Box 1 close to 12 side of air outlet slit, and the secondary filter core 3 is by foam active charcoal
As skeleton, embeds and formed through nano silver or the porous ceramsite filter material of nano-titanium dioxide adsorption treatment, the porous ceramic grain
Filtrate diameter is distributed between 0.5-1mm.
Specifically, filter core is unpicked and washed and replaced for convenience, it is thick to imitate filter core 2 and secondary filter core 3 by 4 activity inserting of deck
In in Rose Box 1, and at the top of Rose Box 1 corresponding thick effect filter core 2 and secondary filter core 3 position installation activity sealing cover 5, it is described
Movable sealing lid 5 is fixed using fastening bolt 51, and the opening movable sealing lid 5 of fastening bolt 51 is unclamped when changeing will slightly imitate filter core 2
It is taken out with secondary filter core 3.
Specifically, drifting along and particulate matter mistake because thick effect filter core mainly carries out first step filtering by biggish in air
It filters, therefore thick effect filter core 2 uses spray fusing non-woven fabrics fiber filter core, spray fusing non-woven fabrics fiber drifts along for larger particles
Filter effect is good, and is easy to get, low in cost.
In the present invention secondary filter core production method the following steps are included:
(1) by foam active charcoal according to Rose Box shape processing at foam active charcoal skeleton, thickness is thick between 5-8cm
Spend too thin, then filter effect is bad, but too thick that it will cause filtration resistances is too big；
(2) by resin glue, deionized water, nano silver or nanometer titanium dioxide carbon particle, ceramic filter material according to weight ratio 1:
5:0.1:1 is uniformly mixed at 50-70 DEG C of temperature and is made mixed liquor, why plus deionized water letdown resin glue be to reduce
Its viscosity, convenient for the progress of subsequent spraying process, nano silver or nanometer titanium dioxide carbon particle meeting first during mixing
It is adsorbed on ceramic filter material surface, wherein ceramic filter material diameter is distributed between 0.5-1mm；
(3) mixed liquor is intersected at pressure 0.3-0.5Mpa using spray gun from foam active charcoal skeleton two sides and is sprayed into, often
Unit area sprays the duration according to 1 centimetre of the every increase of foam active charcoal skeleton thickness time increase by two minutes, in spraying
Mixed liquor is passed through out of foam active charcoal skeleton in the process, since foam active charcoal skeletal internal possesses very intensive and wriggles and passes through
Logical hole, during mixed liquor passes through, the porous ceramsite filter material inside contained will under the action of resin glue
It is gradually adsorbed on these pore walls and completes fixed or be directly flush-mounted in hole；
(4) by foam active charcoal skeleton natural air drying after spraying, then surrounding encapsulates frame, encapsulates frame master
If in order to facilitate the installation of.
Carbon foam (foam carbon) refers to the carbon material of foam-like porous matter.Carbon foam is one kind by Kong Pao and phase
The light porous material with tridimensional network of the hole steep that wall composition to connect.In addition to the traditional performance with Carbon Materials,
Carbon foam also has the characteristics such as density is small, intensity is high, anti-thermal shock, easy processing, and is made into Carbon foam using active carbon, and not only it has
There is very big interior surface area ratio, and it goes back while possessing the characterization of adsorption of active carbon, in addition complicated phase inside Carbon foam
Same tridimensional network, very high filtration is just possessed as frame of filter element itself, especially for organic fine particles
Adsorption effect is more preferable, in order to further increase its adsorption capacity, has also been embedded in it in the present invention through nano silver or nanometer
The porous ceramsite filter material of titanium dioxide adsorption treatment, porous ceramsite filter material are mainly used for filtering non-organic particle, nano silver or
Nano-titanium dioxide possesses very efficient bactericidal effect, both can prevent filter core itself from growing during long-time service
Endophytic bacteria can also carry out sterilization and disinfection to filtered air.
Experimental comparison:
Referring to JIS B 9908-2001 standard, air quantity 160m3/ h, test particle: 0.3-0.5 μm is removed electricity KCl aerosol particle
Son, 0.35-0.6 μm of graphene powder (organic fine particles).
Test method, the commercially available common spray fusing non-woven fabrics filter core for selecting specification the same is installed in filter box and the present invention carries out
Filtration experiment comparison, filter core thickness select 5-8cm.
Into particle number: into the number of particles of filter element filtering.
Particle number out: the number of particles being discharged after filter element filtering.
Experimental data is as follows:
Sterilize antibacterial experiment comparison；
Above-mentioned filter core is respectively arranged in filter box, then filter box is installed in heat exchanger and is placed in same more dirt
50h-60h is continuously worked normally in environment, and then filter core taking-up is placed in same wet environment after 24-30h and is taken out with aobvious
Micro mirror is observed, and obviously has the aggregation of a large amount of bacterium colony on commercially available common non-woven fabric filter core, and only zero on the secondary filter core invented
The bacterial clump of star is distributed, and fungistatic effect and bactericidal effect are obvious.
In conjunction with attached drawing, the embodiments of the present invention are described in detail above, but the present invention is not limited to described implementations
Mode.For a person skilled in the art, in the case where not departing from the principle of the invention and spirit, to these embodiments
A variety of change, modification, replacement and modification are carried out, are still fallen in protection scope of the present invention.
Claims (4)
1. a kind of filter for heat exchanger, including Rose Box (1), slightly effect filter core (2) and secondary filter core (3), the mistake
Air intake (11) and air outlet slit (12) is respectively set in filter box (1) both ends, and the thick effect filter core (2) is installed on Rose Box (1)
Interior close air intake (11) side, the secondary filter core (3) are installed in Rose Box (1) close to air outlet slit (12) side,
It is characterized by: it is described secondary filter core (3) by foam active charcoal be used as skeleton, embed through nano silver or nano-titanium dioxide suction
The porous ceramsite filter material of attached processing forms, and the porous ceramsite filter material diameter is distributed between 0.5-1mm.
2. the filter according to claim 1 for heat exchanger, it is characterised in that: the thick effect filter core (2) and time
Grade filter core (3) is plugged in Rose Box (1) by deck (4) activity, and corresponding thick effect filter core (2) at the top of Rose Box (1)
With the position installation activity sealing cover (5) of secondary filter core (3), the movable sealing lid (5) is fixed using fastening bolt (51).
3. the filter according to claim 1 for heat exchanger, it is characterised in that: the thick effect filter core (2) uses
Spray fusing non-woven fabrics fiber filter core.
4. a kind of production method for filter core secondary in the filter of heat exchanger, feature as described in claim 1 exist
In, comprising the following steps:
(1) by foam active charcoal according to Rose Box shape processing at foam active charcoal skeleton, thickness is between 5-8cm；
(2) by resin glue, deionized water, nano silver or nanometer titanium dioxide carbon particle, ceramic filter material according to weight ratio 1:5:
0.1:1 is uniformly mixed at 50-70 DEG C of temperature and mixed liquor is made, and wherein ceramic filter material diameter is distributed between 0.5-1mm；
(3) mixed liquor is intersected at pressure 0.3-0.5Mpa using spray gun from foam active charcoal skeleton two sides and is sprayed into, per unit
Area sprays the duration according to 1 centimetre of the every increase of foam active charcoal skeleton thickness time increase by two minutes；
(4) by foam active charcoal skeleton natural air drying after spraying, then surrounding encapsulates frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810959481.7A CN109011875B (en) | 2018-08-22 | 2018-08-22 | Filter for heat exchanger and manufacturing method of filter element of filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810959481.7A CN109011875B (en) | 2018-08-22 | 2018-08-22 | Filter for heat exchanger and manufacturing method of filter element of filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109011875A true CN109011875A (en) | 2018-12-18 |
| CN109011875B CN109011875B (en) | 2021-04-09 |
Family
ID=64626858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810959481.7A Active CN109011875B (en) | 2018-08-22 | 2018-08-22 | Filter for heat exchanger and manufacturing method of filter element of filter |
Country Status (1)
| Country | Link |
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| CN (1) | CN109011875B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115025565A (en) * | 2022-05-30 | 2022-09-09 | 澳莆(上海)环保科技有限公司 | Bamboo indoor waste gas filtering purifier |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6171373B1 (en) * | 1996-04-23 | 2001-01-09 | Applied Ceramics, Inc. | Adsorptive monolith including activated carbon, method for making said monolith, and method for adsorbing chemical agents from fluid streams |
| CN1288775A (en) * | 1999-09-17 | 2001-03-28 | 上海维来现代科技发展有限公司 | Photocatalytic air-purifying net in multilayer structure and is making process |
| CN2568189Y (en) * | 2002-08-02 | 2003-08-27 | 中国兵器工业第五二研究所宁波分所 | Nano photocatalysis air purifying fittings |
| CN1923333A (en) * | 2006-04-17 | 2007-03-07 | 株式会社宫尾 | Filter |
| CN101182183A (en) * | 2006-11-13 | 2008-05-21 | 金基石 | Preparation of ceramsite carrier containing activated carbon and method for using same |
| US20100031617A1 (en) * | 2006-11-13 | 2010-02-11 | Research Triangle Insitute | Particle filter system incorporating nanofibers |
| CN201578935U (en) * | 2009-11-29 | 2010-09-15 | 中山市洁鼎过滤制品有限公司 | Ozone removing filter screen |
| CN201806974U (en) * | 2010-10-22 | 2011-04-27 | 上海爱启环境科技有限公司 | Nano photonic composite air purifier |
| CN204017663U (en) * | 2014-08-20 | 2014-12-17 | 郑国书 | A kind of air purifier |
| CN205145979U (en) * | 2015-11-20 | 2016-04-13 | 江阴怡天环保设备有限公司 | Photolytic activity charcoal clarification plant |
| CN107138041A (en) * | 2017-06-16 | 2017-09-08 | 苏州博菡环保科技有限公司 | Photo-catalytic air cleaner |
| CN107158816A (en) * | 2017-06-01 | 2017-09-15 | 合肥大源建筑装饰工程有限公司 | A kind of building decoration air cleaning unit |
| CN207187427U (en) * | 2017-07-26 | 2018-04-06 | 上海哈克过滤科技股份有限公司 | Low windage removes formaldehyde activity carbon filter |
| CN207486985U (en) * | 2017-08-24 | 2018-06-12 | 广州市世来至福科技有限公司 | A kind of air purifier |
-
2018
- 2018-08-22 CN CN201810959481.7A patent/CN109011875B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6171373B1 (en) * | 1996-04-23 | 2001-01-09 | Applied Ceramics, Inc. | Adsorptive monolith including activated carbon, method for making said monolith, and method for adsorbing chemical agents from fluid streams |
| CN1288775A (en) * | 1999-09-17 | 2001-03-28 | 上海维来现代科技发展有限公司 | Photocatalytic air-purifying net in multilayer structure and is making process |
| CN2568189Y (en) * | 2002-08-02 | 2003-08-27 | 中国兵器工业第五二研究所宁波分所 | Nano photocatalysis air purifying fittings |
| CN1923333A (en) * | 2006-04-17 | 2007-03-07 | 株式会社宫尾 | Filter |
| CN101182183A (en) * | 2006-11-13 | 2008-05-21 | 金基石 | Preparation of ceramsite carrier containing activated carbon and method for using same |
| US20100031617A1 (en) * | 2006-11-13 | 2010-02-11 | Research Triangle Insitute | Particle filter system incorporating nanofibers |
| CN201578935U (en) * | 2009-11-29 | 2010-09-15 | 中山市洁鼎过滤制品有限公司 | Ozone removing filter screen |
| CN201806974U (en) * | 2010-10-22 | 2011-04-27 | 上海爱启环境科技有限公司 | Nano photonic composite air purifier |
| CN204017663U (en) * | 2014-08-20 | 2014-12-17 | 郑国书 | A kind of air purifier |
| CN205145979U (en) * | 2015-11-20 | 2016-04-13 | 江阴怡天环保设备有限公司 | Photolytic activity charcoal clarification plant |
| CN107158816A (en) * | 2017-06-01 | 2017-09-15 | 合肥大源建筑装饰工程有限公司 | A kind of building decoration air cleaning unit |
| CN107138041A (en) * | 2017-06-16 | 2017-09-08 | 苏州博菡环保科技有限公司 | Photo-catalytic air cleaner |
| CN207187427U (en) * | 2017-07-26 | 2018-04-06 | 上海哈克过滤科技股份有限公司 | Low windage removes formaldehyde activity carbon filter |
| CN207486985U (en) * | 2017-08-24 | 2018-06-12 | 广州市世来至福科技有限公司 | A kind of air purifier |
Non-Patent Citations (2)
| Title |
|---|
| 王永康等: "《纳米材料科学与技术》", 31 March 2002 * |
| 陆玉峻 等译: "《新炭素工业》", 31 August 1990, 哈尔滨工业大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115025565A (en) * | 2022-05-30 | 2022-09-09 | 澳莆(上海)环保科技有限公司 | Bamboo indoor waste gas filtering purifier |
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| Publication number | Publication date |
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| CN109011875B (en) | 2021-04-09 |
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