CN109011875B - Filter for heat exchanger and manufacturing method of filter element of filter - Google Patents
Filter for heat exchanger and manufacturing method of filter element of filter Download PDFInfo
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- CN109011875B CN109011875B CN201810959481.7A CN201810959481A CN109011875B CN 109011875 B CN109011875 B CN 109011875B CN 201810959481 A CN201810959481 A CN 201810959481A CN 109011875 B CN109011875 B CN 109011875B
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- filter
- activated carbon
- filter element
- framework
- filter core
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- 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
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- 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
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- 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
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- 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
Abstract
The invention discloses a filter for a heat exchanger and a filter element manufacturing method thereof, wherein the filter comprises a filter box, a coarse filter element and a secondary filter element, an air inlet and an air outlet are respectively arranged at two ends of the filter box, the coarse filter element is arranged at one side close to the air inlet in the filter box, the secondary filter element is arranged at one side close to the air outlet in the filter box, the secondary filter element is composed of foam activated carbon as a framework and a porous ceramsite filter material which is subjected to adsorption treatment by nano silver or nano titanium dioxide is embedded in the secondary filter element. The secondary filter element of the invention takes the foam activated carbon as a framework, the foam activated carbon not only has very large internal surface area ratio, but also simultaneously has the adsorption characteristic of the activated carbon, and the foam activated carbon has a very high filtering effect as the framework of the filter element by virtue of a three-dimensional network structure with the same and complicated inside, and the porous ceramsite filter material subjected to adsorption treatment by the nano silver or the nano titanium dioxide is embedded in the secondary filter element, so that the secondary filter element has high filtering efficiency and can inhibit bacteria and sterilize.
Description
Technical Field
The invention relates to the technical field of heat exchangers, in particular to a filter for a heat exchanger and a filter element manufacturing method thereof.
Background
The heat exchanger is a device for exchanging heat between introduced outdoor air and discharged indoor air, for example, in winter, the introduced lower temperature outdoor air can be heated by the discharged higher temperature indoor air, and in summer, the temperature of the introduced higher temperature outdoor air can be reduced by absorbing heat of the introduced higher temperature indoor air by the discharged indoor air cooled by an air conditioner. Generally, air is filtered firstly in the introduction process, and the filtering generally adopts a filter element. The existing filter element has various types, and the air contains a lot of particles, and the types of the particles are roughly divided into charged particles, neutral particles (uncharged particles) or organic particles and inorganic particles. Traditional filter core is more obvious to the micronic dust filter effect of large granule, for example ordinary spout melts the non-woven fabrics filter core, but is not good to neutral granule such as aerosol or the adsorption effect of organic particle, and the key is that micronic dust and bacterium in the air after filtering have all been stayed on the filter paper of filter core on a large number, cause bacterial growing very easily.
Disclosure of Invention
The invention aims to provide a filter for a heat exchanger, which has a good filtering effect and certain bacteriostatic and bactericidal functions.
The technical scheme of the invention is as follows:
the utility model provides a filter for heat exchanger, includes rose box, coarse filter core and secondary filter core, the rose box both ends set up air inlet and air outlet respectively, coarse filter core is installed and is close to air inlet one side in the rose box, secondary filter core is installed and is close to air outlet one side in the rose box, secondary filter core is regarded as the skeleton by foam activated carbon, and the embedded porous haydite filter material that adsorbs the processing through nanometer silver or nanometer titanium dioxide constitutes, porous haydite filter material diameter distributes between 0.5-1 mm.
Furthermore, the coarse filter element and the secondary filter element are movably inserted into the filter box through the clamping seat, and movable sealing covers are arranged at the positions, corresponding to the coarse filter element and the secondary filter element, of the top of the filter box and are fixed through fastening bolts.
Furthermore, the coarse filter element adopts a spray-melt non-woven fabric fiber filter element.
The invention also provides a manufacturing method of the secondary filter element, which comprises the following steps:
(1) processing the foam activated carbon into a foam activated carbon framework according to the shape of the filter box, wherein the thickness of the foam activated carbon framework is between 5 and 8 cm;
(2) uniformly mixing resin adhesive, deionized water, nano silver or nano carbon dioxide particles and a ceramic filter material according to the weight ratio of 1:5:0.1:1 at the temperature of 50-70 ℃ to prepare a mixed solution, wherein the diameter of the ceramic filter material is distributed between 0.5-1 mm;
(3) the mixed solution is sprayed into the foam activated carbon framework from two sides in a cross way by a high-pressure spray gun under the pressure of 0.3-0.5Mpa, and the spraying duration per unit area is increased for two minutes according to the increase of the thickness of the foam activated carbon framework for every 1 cm;
(4) and after the spraying is finished, naturally drying the foam activated carbon skeleton, and then packaging the frame all around.
The invention has the advantages that:
the secondary filter element of the invention is composed of foam activated carbon as a framework and a porous ceramsite filter material which is embedded and adsorbed by nano silver or nano titanium dioxide, the foam activated carbon not only has very large internal surface area ratio, and the adsorption characteristic of the active carbon is also possessed, and the filter element framework has very high filtering effect as a filter element framework by the aid of the complex and same three-dimensional reticular structure inside the foam carbon, and particularly has better adsorption effect on organic particles, in order to further increase the adsorption capacity, a porous ceramsite filter material subjected to adsorption treatment by nano silver or nano titanium dioxide is embedded in the filter material, the porous ceramsite filter material is mainly used for filtering non-organic particles, and the nano silver or nano titanium dioxide has a very high-efficient sterilization and bacteriostasis effect, so that the filter element can be prevented from breeding bacteria in the long-term use process, and the filtered air can be sterilized and disinfected.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a schematic external view of the present invention;
FIG. 3 is a schematic diagram of a foamed activated carbon structure;
fig. 4 is an enlarged schematic view of the structure of the foamed activated carbon of fig. 3.
In the figure: 1-a filter box, 11-an air inlet, 12-an air outlet, 2-a coarse filter element, 3-a secondary filter element, 4-a clamping seat, 5-a movable sealing cover and 51-a fastening bolt.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1-4:
the utility model provides a filter for heat exchanger, includes rose box 1, coarse filter core 2 and secondary filter core 3, 1 both ends of rose box set up air inlet 11 and air outlet 12 respectively, coarse filter core 2 is installed and is close to air inlet 11 one side in rose box 1, secondary filter core 3 is installed and is close to air outlet 12 one side in rose box 1, secondary filter core 3 is regarded as the skeleton by foam activated carbon, and the embedded porous haydite filter material that adsorbs through nanometer silver or nanometer titanium dioxide is constituteed, porous haydite filter material diameter distributes between 0.5-1 mm.
Specifically, in order to conveniently unpick and wash and change the filter core, coarse filter core 2 and secondary filter core 3 all pass through cassette 4 activity cartridge in rose box 1 to correspond coarse filter core 2 and secondary filter core 3's position installation movable sealing lid 5 at rose box 1 top, movable sealing lid 5 adopts fastening bolt 51 fixed, loosens fastening bolt 51 when tearing open and changing and opens movable sealing lid 5 and take out coarse filter core 2 and secondary filter core 3 alright.
Specifically, because coarse filter core mainly carries out first step filtration, filters great float and sink and particulate matter in the air, consequently coarse filter core 2 adopt spout melt non-woven fabrics fibre filter core can, spout melt non-woven fabrics fibre and to great granule float and sink filter effect good, obtain low cost easily moreover.
The manufacturing method of the secondary filter element comprises the following steps:
(1) processing the foam activated carbon into a foam activated carbon framework according to the shape of the filter box, wherein the thickness is 5-8cm, and if the thickness is too thin, the filtering effect is poor, but if the thickness is too thick, the filtering resistance is too large;
(2) uniformly mixing resin adhesive, deionized water, nano silver or nano carbon dioxide particles and a ceramic filter material according to the weight ratio of 1:5:0.1:1 at the temperature of 50-70 ℃ to prepare a mixed solution, wherein the deionized water is added to dilute the resin adhesive so as to reduce the viscosity of the resin adhesive and facilitate the subsequent spraying process, and in the mixing process, firstly, the nano silver or the nano carbon dioxide particles are adsorbed on the surface of the ceramic filter material, wherein the diameter of the ceramic filter material is distributed between 0.5 mm and 1 mm;
(3) the mixed liquid is sprayed into the foam activated carbon framework from two sides in a cross way by a spray gun under the pressure of 0.3-0.5Mpa, the spraying duration per unit area is increased for two minutes every 1 cm according to the thickness of the foam activated carbon framework, the mixed liquid passes through the foam activated carbon framework in the spraying process, and because the foam activated carbon framework is internally provided with very dense and winding through pores, the porous ceramsite filter material contained in the mixed liquid can be gradually adsorbed on the walls of the pores to finish the fixation or be directly embedded in the pores under the action of resin adhesive in the process of passing the mixed liquid;
(4) and after the spraying is finished, the foam activated carbon skeleton is naturally air-dried, and then the frame is packaged all around, wherein the packaged frame is mainly used for facilitating the installation.
Foam carbon refers to a foamed porous carbon material. The foam carbon is a light porous material with a three-dimensional network structure and composed of pores and interconnected pore cell walls. Besides the conventional performance of carbon materials, the foam carbon also has the characteristics of small density, high strength, thermal shock resistance, easy processing and the like, the foam carbon prepared by adopting the active carbon not only has very large internal surface area ratio, but also has the adsorption characteristic of the active carbon, and the three-dimensional net structure with the same complexity in the foam carbon is used as a filter element framework to have very high filtering effect, especially has better adsorption effect on organic particles, in order to further increase the adsorption capacity, a porous ceramsite filter material subjected to adsorption treatment by nano silver or nano titanium dioxide is embedded in the filter material, the porous ceramsite filter material is mainly used for filtering non-organic particles, and the nano silver or nano titanium dioxide has a very high-efficient sterilization and bacteriostasis effect, so that the filter element can be prevented from breeding bacteria in the long-term use process, and the filtered air can be sterilized and disinfected.
And (3) experimental comparison:
air volume of 160m according to JIS B9908-2001 standard3H, test particles: 0.3-0.5 μm excluding electric KCl aerosol particles and 0.35-0.6 μm graphene powder (organic microparticles).
The test method comprises the steps of selecting a commercially available common spray-melting non-woven fabric filter element with the same specification, installing the filter element in a filter box, and comparing the filter element with the filter box in a filtration experiment, wherein the thickness of the filter element is 5-8 cm.
The number of the entering particles is as follows: the amount of particles entering the filter element for filtration.
The number of particles coming out is as follows: the number of particles discharged after being filtered by the filter element.
The experimental data are as follows:
comparing sterilization and antibiosis experiments;
the filter elements are respectively arranged in the filter boxes, then the filter boxes are arranged in the heat exchanger and are placed in the same dusty environment to continuously and normally work for 50-60 h, then the filter elements are taken out and placed in the same humid environment for 24-30h, then the filter elements are taken out and observed by a microscope, a large amount of colony aggregation is obviously generated on the common non-woven fabric filter element sold in the market, only sporadic bacterial colony distribution is generated on the secondary filter element disclosed by the invention, and the bacteriostatic effect and the bactericidal effect are obvious.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
Claims (3)
1. The utility model provides a filter for heat exchanger, includes rose box (1), coarse filter core (2) and secondary filter core (3), rose box (1) both ends set up air inlet (11) and air outlet (12) respectively, coarse filter core (2) are installed and are close to air inlet (11) one side in rose box (1), secondary filter core (3) are installed and are close to air outlet (12) one side in rose box (1), its characterized in that: the secondary filter element (3) is composed of foam activated carbon as a framework and a porous ceramsite filter material which is subjected to adsorption treatment by nano silver or nano titanium dioxide is embedded in the framework, and the diameter of the porous ceramsite filter material is distributed between 0.5 and 1 mm;
the manufacturing method of the secondary filter element (3) comprises the following steps:
(1) processing the foam activated carbon into a foam activated carbon framework according to the shape of the filter box, wherein the thickness of the foam activated carbon framework is between 5 and 8 cm;
(2) uniformly mixing resin adhesive, deionized water, nano silver or nano titanium dioxide particles and a ceramic filter material according to the weight ratio of 1:5:0.1:1 at the temperature of 50-70 ℃ to prepare a mixed solution, wherein the diameter of the ceramic filter material is distributed between 0.5-1 mm;
(3) spraying the mixed solution into the foam activated carbon framework from two sides of the foam activated carbon framework in a cross way by using a spray gun under the pressure of 0.3-0.5Mpa, and increasing the spraying duration time of each unit area for two minutes according to the increase time of each 1 cm of the thickness of the foam activated carbon framework;
(4) and after the spraying is finished, naturally drying the foam activated carbon skeleton, and then packaging the frame all around.
2. The filter for a heat exchanger as claimed in claim 1, wherein: coarse filter core (2) and secondary filter core (3) all pass through cassette (4) activity cartridge in rose box (1) to correspond coarse filter core (2) and secondary filter core (3) position installation movable sealing lid (5) in rose box (1) top, movable sealing lid (5) adopt fastening bolt (51) to fix.
3. The filter for a heat exchanger as claimed in claim 1, wherein: the coarse filter element (2) adopts a spray-melt non-woven fabric fiber filter element.
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 CN109011875A (en) | 2018-12-18 |
| CN109011875B true CN109011875B (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810959481.7A Active CN109011875B (en) | 2018-08-22 | 2018-08-22 | Filter for heat exchanger and manufacturing method of filter element of filter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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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| CN101182183A (en) * | 2006-11-13 | 2008-05-21 | 金基石 | Preparation of ceramsite carrier containing activated carbon and method for using same |
| 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 |
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